Home / 91,731.24-126,471.92-59,408.75

Finding the Fourth Proportional to 91,731.24, 126,471.92 and 59,408.75

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Solution

The fourth proportional to 91,731.24, 126,471.92 and 59,408.75 is: 81,908.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,731.24 : 126,471.92 = 59,408.75 : x
  2. Step 2: Convert to fraction form
    91,731.24/126,471.92 = 59,408.75/x
  3. Step 3: Cross multiply
    91,731.24x = 126,471.92 × 59,408.75
  4. Step 4: Simplify right side
    91,731.24x = 7,513,538,677.30
  5. Step 5: Solve for x
    x = 7,513,538,677.30/91,731.24
  6. Step 6: Final answer
    x = 81,908.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.