Home / 105,691.77-145,854.61-57,944.09

Finding the Fourth Proportional to 105,691.77, 145,854.61 and 57,944.09

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Solution

The fourth proportional to 105,691.77, 145,854.61 and 57,944.09 is: 79,962.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,691.77 : 145,854.61 = 57,944.09 : x
  2. Step 2: Convert to fraction form
    105,691.77/145,854.61 = 57,944.09/x
  3. Step 3: Cross multiply
    105,691.77x = 145,854.61 × 57,944.09
  4. Step 4: Simplify right side
    105,691.77x = 8,451,412,868.53
  5. Step 5: Solve for x
    x = 8,451,412,868.53/105,691.77
  6. Step 6: Final answer
    x = 79,962.83

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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.