Home / 91,355.13-137,101.95-38,801.52

Finding the Fourth Proportional to 91,355.13, 137,101.95 and 38,801.52

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Solution

The fourth proportional to 91,355.13, 137,101.95 and 38,801.52 is: 58,231.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,355.13 : 137,101.95 = 38,801.52 : x
  2. Step 2: Convert to fraction form
    91,355.13/137,101.95 = 38,801.52/x
  3. Step 3: Cross multiply
    91,355.13x = 137,101.95 × 38,801.52
  4. Step 4: Simplify right side
    91,355.13x = 5,319,764,054.96
  5. Step 5: Solve for x
    x = 5,319,764,054.96/91,355.13
  6. Step 6: Final answer
    x = 58,231.69

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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.