Home / 81,770.52-122,703.36-34,382.18

Finding the Fourth Proportional to 81,770.52, 122,703.36 and 34,382.18

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Solution

The fourth proportional to 81,770.52, 122,703.36 and 34,382.18 is: 51,593.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,770.52 : 122,703.36 = 34,382.18 : x
  2. Step 2: Convert to fraction form
    81,770.52/122,703.36 = 34,382.18/x
  3. Step 3: Cross multiply
    81,770.52x = 122,703.36 × 34,382.18
  4. Step 4: Simplify right side
    81,770.52x = 4,218,808,267.67
  5. Step 5: Solve for x
    x = 4,218,808,267.67/81,770.52
  6. Step 6: Final answer
    x = 51,593.27

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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.