Home / 91,140.14-125,796.50-54,385.92

Finding the Fourth Proportional to 91,140.14, 125,796.50 and 54,385.92

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Solution

The fourth proportional to 91,140.14, 125,796.50 and 54,385.92 is: 75,066.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,140.14 : 125,796.50 = 54,385.92 : x
  2. Step 2: Convert to fraction form
    91,140.14/125,796.50 = 54,385.92/x
  3. Step 3: Cross multiply
    91,140.14x = 125,796.50 × 54,385.92
  4. Step 4: Simplify right side
    91,140.14x = 6,841,558,385.28
  5. Step 5: Solve for x
    x = 6,841,558,385.28/91,140.14
  6. Step 6: Final answer
    x = 75,066.36

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1.5x scale

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.