Home / 91,332.38-137,011.64-28,157.85

Finding the Fourth Proportional to 91,332.38, 137,011.64 and 28,157.85

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Solution

The fourth proportional to 91,332.38, 137,011.64 and 28,157.85 is: 42,240.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,332.38 : 137,011.64 = 28,157.85 : x
  2. Step 2: Convert to fraction form
    91,332.38/137,011.64 = 28,157.85/x
  3. Step 3: Cross multiply
    91,332.38x = 137,011.64 × 28,157.85
  4. Step 4: Simplify right side
    91,332.38x = 3,857,953,066.58
  5. Step 5: Solve for x
    x = 3,857,953,066.58/91,332.38
  6. Step 6: Final answer
    x = 42,240.80

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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.