Home / 84,731.27-127,132.80-42,589.16

Finding the Fourth Proportional to 84,731.27, 127,132.80 and 42,589.16

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Solution

The fourth proportional to 84,731.27, 127,132.80 and 42,589.16 is: 63,901.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,731.27 : 127,132.80 = 42,589.16 : x
  2. Step 2: Convert to fraction form
    84,731.27/127,132.80 = 42,589.16/x
  3. Step 3: Cross multiply
    84,731.27x = 127,132.80 × 42,589.16
  4. Step 4: Simplify right side
    84,731.27x = 5,414,478,311.84
  5. Step 5: Solve for x
    x = 5,414,478,311.84/84,731.27
  6. Step 6: Final answer
    x = 63,901.77

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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.