Home / 99,677.34-137,565.69-61,429.14

Finding the Fourth Proportional to 99,677.34, 137,565.69 and 61,429.14

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Solution

The fourth proportional to 99,677.34, 137,565.69 and 61,429.14 is: 84,778.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,677.34 : 137,565.69 = 61,429.14 : x
  2. Step 2: Convert to fraction form
    99,677.34/137,565.69 = 61,429.14/x
  3. Step 3: Cross multiply
    99,677.34x = 137,565.69 × 61,429.14
  4. Step 4: Simplify right side
    99,677.34x = 8,450,542,030.21
  5. Step 5: Solve for x
    x = 8,450,542,030.21/99,677.34
  6. Step 6: Final answer
    x = 84,778.97

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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.