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Finding the Fourth Proportional to 79,489.67, 118,974.90 and 58,424.14

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Solution

The fourth proportional to 79,489.67, 118,974.90 and 58,424.14 is: 87,445.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,489.67 : 118,974.90 = 58,424.14 : x
  2. Step 2: Convert to fraction form
    79,489.67/118,974.90 = 58,424.14/x
  3. Step 3: Cross multiply
    79,489.67x = 118,974.90 × 58,424.14
  4. Step 4: Simplify right side
    79,489.67x = 6,951,005,619.21
  5. Step 5: Solve for x
    x = 6,951,005,619.21/79,489.67
  6. Step 6: Final answer
    x = 87,445.40

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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.