Home / 91,135.40-125,769.85-52,892.06

Finding the Fourth Proportional to 91,135.40, 125,769.85 and 52,892.06

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Solution

The fourth proportional to 91,135.40, 125,769.85 and 52,892.06 is: 72,992.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,135.40 : 125,769.85 = 52,892.06 : x
  2. Step 2: Convert to fraction form
    91,135.40/125,769.85 = 52,892.06/x
  3. Step 3: Cross multiply
    91,135.40x = 125,769.85 × 52,892.06
  4. Step 4: Simplify right side
    91,135.40x = 6,652,225,691.31
  5. Step 5: Solve for x
    x = 6,652,225,691.31/91,135.40
  6. Step 6: Final answer
    x = 72,992.78

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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.