Home / 85,115.56-127,691.64-42,444.24

Finding the Fourth Proportional to 85,115.56, 127,691.64 and 42,444.24

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Solution

The fourth proportional to 85,115.56, 127,691.64 and 42,444.24 is: 63,675.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,115.56 : 127,691.64 = 42,444.24 : x
  2. Step 2: Convert to fraction form
    85,115.56/127,691.64 = 42,444.24/x
  3. Step 3: Cross multiply
    85,115.56x = 127,691.64 × 42,444.24
  4. Step 4: Simplify right side
    85,115.56x = 5,419,774,614.15
  5. Step 5: Solve for x
    x = 5,419,774,614.15/85,115.56
  6. Step 6: Final answer
    x = 63,675.49

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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.