Home / 83,628.38-125,437.72-61,161.82

Finding the Fourth Proportional to 83,628.38, 125,437.72 and 61,161.82

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Solution

The fourth proportional to 83,628.38, 125,437.72 and 61,161.82 is: 91,739.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,628.38 : 125,437.72 = 61,161.82 : x
  2. Step 2: Convert to fraction form
    83,628.38/125,437.72 = 61,161.82/x
  3. Step 3: Cross multiply
    83,628.38x = 125,437.72 × 61,161.82
  4. Step 4: Simplify right side
    83,628.38x = 7,671,999,251.85
  5. Step 5: Solve for x
    x = 7,671,999,251.85/83,628.38
  6. Step 6: Final answer
    x = 91,739.18

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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.