Home / 63,013.28-86,990.47-42,702.64

Finding the Fourth Proportional to 63,013.28, 86,990.47 and 42,702.64

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Solution

The fourth proportional to 63,013.28, 86,990.47 and 42,702.64 is: 58,951.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,013.28 : 86,990.47 = 42,702.64 : x
  2. Step 2: Convert to fraction form
    63,013.28/86,990.47 = 42,702.64/x
  3. Step 3: Cross multiply
    63,013.28x = 86,990.47 × 42,702.64
  4. Step 4: Simplify right side
    63,013.28x = 3,714,722,723.84
  5. Step 5: Solve for x
    x = 3,714,722,723.84/63,013.28
  6. Step 6: Final answer
    x = 58,951.43

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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.