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Finding the Fourth Proportional to 63,287.04, 87,327.54 and 53,765.40

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Solution

The fourth proportional to 63,287.04, 87,327.54 and 53,765.40 is: 74,188.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,287.04 : 87,327.54 = 53,765.40 : x
  2. Step 2: Convert to fraction form
    63,287.04/87,327.54 = 53,765.40/x
  3. Step 3: Cross multiply
    63,287.04x = 87,327.54 × 53,765.40
  4. Step 4: Simplify right side
    63,287.04x = 4,695,200,119.12
  5. Step 5: Solve for x
    x = 4,695,200,119.12/63,287.04
  6. Step 6: Final answer
    x = 74,188.97

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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.