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Finding the Fourth Proportional to 99,794.27, 137,746.62 and 61,565.71

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Solution

The fourth proportional to 99,794.27, 137,746.62 and 61,565.71 is: 84,979.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,794.27 : 137,746.62 = 61,565.71 : x
  2. Step 2: Convert to fraction form
    99,794.27/137,746.62 = 61,565.71/x
  3. Step 3: Cross multiply
    99,794.27x = 137,746.62 × 61,565.71
  4. Step 4: Simplify right side
    99,794.27x = 8,480,468,460.40
  5. Step 5: Solve for x
    x = 8,480,468,460.40/99,794.27
  6. Step 6: Final answer
    x = 84,979.51

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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.