Home / 91,997.80-137,996.40-25,437.76

Finding the Fourth Proportional to 91,997.80, 137,996.40 and 25,437.76

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Solution

The fourth proportional to 91,997.80, 137,996.40 and 25,437.76 is: 38,156.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,997.80 : 137,996.40 = 25,437.76 : x
  2. Step 2: Convert to fraction form
    91,997.80/137,996.40 = 25,437.76/x
  3. Step 3: Cross multiply
    91,997.80x = 137,996.40 × 25,437.76
  4. Step 4: Simplify right side
    91,997.80x = 3,510,319,304.06
  5. Step 5: Solve for x
    x = 3,510,319,304.06/91,997.80
  6. Step 6: Final answer
    x = 38,156.56

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1.5x scale

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.