Home / 42,081.64-63,136.30-15,432.70

Finding the Fourth Proportional to 42,081.64, 63,136.30 and 15,432.70

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Solution

The fourth proportional to 42,081.64, 63,136.30 and 15,432.70 is: 23,154.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,081.64 : 63,136.30 = 15,432.70 : x
  2. Step 2: Convert to fraction form
    42,081.64/63,136.30 = 15,432.70/x
  3. Step 3: Cross multiply
    42,081.64x = 63,136.30 × 15,432.70
  4. Step 4: Simplify right side
    42,081.64x = 974,363,683.77
  5. Step 5: Solve for x
    x = 974,363,683.77/42,081.64
  6. Step 6: Final answer
    x = 23,154.13

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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.