Home / 86,219.68-129,329.28-23,890.24

Finding the Fourth Proportional to 86,219.68, 129,329.28 and 23,890.24

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Solution

The fourth proportional to 86,219.68, 129,329.28 and 23,890.24 is: 35,835.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,219.68 : 129,329.28 = 23,890.24 : x
  2. Step 2: Convert to fraction form
    86,219.68/129,329.28 = 23,890.24/x
  3. Step 3: Cross multiply
    86,219.68x = 129,329.28 × 23,890.24
  4. Step 4: Simplify right side
    86,219.68x = 3,089,707,538.23
  5. Step 5: Solve for x
    x = 3,089,707,538.23/86,219.68
  6. Step 6: Final answer
    x = 35,835.29

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.