Home / 78,694.61-108,595.40-42,883.85

Finding the Fourth Proportional to 78,694.61, 108,595.40 and 42,883.85

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Solution

The fourth proportional to 78,694.61, 108,595.40 and 42,883.85 is: 59,177.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,694.61 : 108,595.40 = 42,883.85 : x
  2. Step 2: Convert to fraction form
    78,694.61/108,595.40 = 42,883.85/x
  3. Step 3: Cross multiply
    78,694.61x = 108,595.40 × 42,883.85
  4. Step 4: Simplify right side
    78,694.61x = 4,656,988,901.36
  5. Step 5: Solve for x
    x = 4,656,988,901.36/78,694.61
  6. Step 6: Final answer
    x = 59,177.99

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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.