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Finding the Fourth Proportional to 83,437.72, 125,155.14 and 28,033.72

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Solution

The fourth proportional to 83,437.72, 125,155.14 and 28,033.72 is: 42,050.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,437.72 : 125,155.14 = 28,033.72 : x
  2. Step 2: Convert to fraction form
    83,437.72/125,155.14 = 28,033.72/x
  3. Step 3: Cross multiply
    83,437.72x = 125,155.14 × 28,033.72
  4. Step 4: Simplify right side
    83,437.72x = 3,508,564,151.32
  5. Step 5: Solve for x
    x = 3,508,564,151.32/83,437.72
  6. Step 6: Final answer
    x = 42,050.10

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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.