Home / 91,487.28-137,296.52-38,933.68

Finding the Fourth Proportional to 91,487.28, 137,296.52 and 38,933.68

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Solution

The fourth proportional to 91,487.28, 137,296.52 and 38,933.68 is: 58,428.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,487.28 : 137,296.52 = 38,933.68 : x
  2. Step 2: Convert to fraction form
    91,487.28/137,296.52 = 38,933.68/x
  3. Step 3: Cross multiply
    91,487.28x = 137,296.52 × 38,933.68
  4. Step 4: Simplify right side
    91,487.28x = 5,345,458,774.79
  5. Step 5: Solve for x
    x = 5,345,458,774.79/91,487.28
  6. Step 6: Final answer
    x = 58,428.44

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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.