Home / 86,217.36-129,328.20-23,887.68

Finding the Fourth Proportional to 86,217.36, 129,328.20 and 23,887.68

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Solution

The fourth proportional to 86,217.36, 129,328.20 and 23,887.68 is: 35,832.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,217.36 : 129,328.20 = 23,887.68 : x
  2. Step 2: Convert to fraction form
    86,217.36/129,328.20 = 23,887.68/x
  3. Step 3: Cross multiply
    86,217.36x = 129,328.20 × 23,887.68
  4. Step 4: Simplify right side
    86,217.36x = 3,089,350,656.58
  5. Step 5: Solve for x
    x = 3,089,350,656.58/86,217.36
  6. Step 6: Final answer
    x = 35,832.12

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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.