Home / 86,489.27-129,751.41-36,569.28

Finding the Fourth Proportional to 86,489.27, 129,751.41 and 36,569.28

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Solution

The fourth proportional to 86,489.27, 129,751.41 and 36,569.28 is: 54,861.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,489.27 : 129,751.41 = 36,569.28 : x
  2. Step 2: Convert to fraction form
    86,489.27/129,751.41 = 36,569.28/x
  3. Step 3: Cross multiply
    86,489.27x = 129,751.41 × 36,569.28
  4. Step 4: Simplify right side
    86,489.27x = 4,744,916,266.39
  5. Step 5: Solve for x
    x = 4,744,916,266.39/86,489.27
  6. Step 6: Final answer
    x = 54,861.33

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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.