Home / 84,662.40-116,781.24-54,487.20

Finding the Fourth Proportional to 84,662.40, 116,781.24 and 54,487.20

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Solution

The fourth proportional to 84,662.40, 116,781.24 and 54,487.20 is: 75,158.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,662.40 : 116,781.24 = 54,487.20 : x
  2. Step 2: Convert to fraction form
    84,662.40/116,781.24 = 54,487.20/x
  3. Step 3: Cross multiply
    84,662.40x = 116,781.24 × 54,487.20
  4. Step 4: Simplify right side
    84,662.40x = 6,363,082,780.13
  5. Step 5: Solve for x
    x = 6,363,082,780.13/84,662.40
  6. Step 6: Final answer
    x = 75,158.31

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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.