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Finding the Fourth Proportional to 99,573.86, 137,411.16 and 54,251.71

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Solution

The fourth proportional to 99,573.86, 137,411.16 and 54,251.71 is: 74,866.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,573.86 : 137,411.16 = 54,251.71 : x
  2. Step 2: Convert to fraction form
    99,573.86/137,411.16 = 54,251.71/x
  3. Step 3: Cross multiply
    99,573.86x = 137,411.16 × 54,251.71
  4. Step 4: Simplify right side
    99,573.86x = 7,454,790,403.08
  5. Step 5: Solve for x
    x = 7,454,790,403.08/99,573.86
  6. Step 6: Final answer
    x = 74,866.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.