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Finding the Fourth Proportional to 63,710.30, 87,932.40 and 42,200.30

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Solution

The fourth proportional to 63,710.30, 87,932.40 and 42,200.30 is: 58,244.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,710.30 : 87,932.40 = 42,200.30 : x
  2. Step 2: Convert to fraction form
    63,710.30/87,932.40 = 42,200.30/x
  3. Step 3: Cross multiply
    63,710.30x = 87,932.40 × 42,200.30
  4. Step 4: Simplify right side
    63,710.30x = 3,710,773,659.72
  5. Step 5: Solve for x
    x = 3,710,773,659.72/63,710.30
  6. Step 6: Final answer
    x = 58,244.49

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1.5x scale

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.