Home / 91,427.89-137,141.84-38,800.47

Finding the Fourth Proportional to 91,427.89, 137,141.84 and 38,800.47

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Solution

The fourth proportional to 91,427.89, 137,141.84 and 38,800.47 is: 58,200.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,427.89 : 137,141.84 = 38,800.47 : x
  2. Step 2: Convert to fraction form
    91,427.89/137,141.84 = 38,800.47/x
  3. Step 3: Cross multiply
    91,427.89x = 137,141.84 × 38,800.47
  4. Step 4: Simplify right side
    91,427.89x = 5,321,167,848.66
  5. Step 5: Solve for x
    x = 5,321,167,848.66/91,427.89
  6. Step 6: Final answer
    x = 58,200.71

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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.