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Finding the Fourth Proportional to 71,693.60, 107,535 and 29,001.74

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Solution

The fourth proportional to 71,693.60, 107,535 and 29,001.74 is: 43,500.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,693.60 : 107,535 = 29,001.74 : x
  2. Step 2: Convert to fraction form
    71,693.60/107,535 = 29,001.74/x
  3. Step 3: Cross multiply
    71,693.60x = 107,535 × 29,001.74
  4. Step 4: Simplify right side
    71,693.60x = 3,118,702,110.90
  5. Step 5: Solve for x
    x = 3,118,702,110.90/71,693.60
  6. Step 6: Final answer
    x = 43,500.43

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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.