Home / 86,211.28-129,325.92-23,881.80

Finding the Fourth Proportional to 86,211.28, 129,325.92 and 23,881.80

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Solution

The fourth proportional to 86,211.28, 129,325.92 and 23,881.80 is: 35,825.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,211.28 : 129,325.92 = 23,881.80 : x
  2. Step 2: Convert to fraction form
    86,211.28/129,325.92 = 23,881.80/x
  3. Step 3: Cross multiply
    86,211.28x = 129,325.92 × 23,881.80
  4. Step 4: Simplify right side
    86,211.28x = 3,088,535,756.26
  5. Step 5: Solve for x
    x = 3,088,535,756.26/86,211.28
  6. Step 6: Final answer
    x = 35,825.19

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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.