Home / 88,693.80-122,530.73-58,139.43

Finding the Fourth Proportional to 88,693.80, 122,530.73 and 58,139.43

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Solution

The fourth proportional to 88,693.80, 122,530.73 and 58,139.43 is: 80,319.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,693.80 : 122,530.73 = 58,139.43 : x
  2. Step 2: Convert to fraction form
    88,693.80/122,530.73 = 58,139.43/x
  3. Step 3: Cross multiply
    88,693.80x = 122,530.73 × 58,139.43
  4. Step 4: Simplify right side
    88,693.80x = 7,123,866,799.68
  5. Step 5: Solve for x
    x = 7,123,866,799.68/88,693.80
  6. Step 6: Final answer
    x = 80,319.78

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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.