Home / 91,331.44-136,973.40-38,713.84

Finding the Fourth Proportional to 91,331.44, 136,973.40 and 38,713.84

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Solution

The fourth proportional to 91,331.44, 136,973.40 and 38,713.84 is: 58,060.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,331.44 : 136,973.40 = 38,713.84 : x
  2. Step 2: Convert to fraction form
    91,331.44/136,973.40 = 38,713.84/x
  3. Step 3: Cross multiply
    91,331.44x = 136,973.40 × 38,713.84
  4. Step 4: Simplify right side
    91,331.44x = 5,302,766,291.86
  5. Step 5: Solve for x
    x = 5,302,766,291.86/91,331.44
  6. Step 6: Final answer
    x = 58,060.69

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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.