Home / 79,705.15-119,553.59-29,781.30

Finding the Fourth Proportional to 79,705.15, 119,553.59 and 29,781.30

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Solution

The fourth proportional to 79,705.15, 119,553.59 and 29,781.30 is: 44,670.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,705.15 : 119,553.59 = 29,781.30 : x
  2. Step 2: Convert to fraction form
    79,705.15/119,553.59 = 29,781.30/x
  3. Step 3: Cross multiply
    79,705.15x = 119,553.59 × 29,781.30
  4. Step 4: Simplify right side
    79,705.15x = 3,560,460,882.08
  5. Step 5: Solve for x
    x = 3,560,460,882.08/79,705.15
  6. Step 6: Final answer
    x = 44,670.40

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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.