Home / 78,266.30-108,006.66-42,456.02

Finding the Fourth Proportional to 78,266.30, 108,006.66 and 42,456.02

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Solution

The fourth proportional to 78,266.30, 108,006.66 and 42,456.02 is: 58,588.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,266.30 : 108,006.66 = 42,456.02 : x
  2. Step 2: Convert to fraction form
    78,266.30/108,006.66 = 42,456.02/x
  3. Step 3: Cross multiply
    78,266.30x = 108,006.66 × 42,456.02
  4. Step 4: Simplify right side
    78,266.30x = 4,585,532,377.06
  5. Step 5: Solve for x
    x = 4,585,532,377.06/78,266.30
  6. Step 6: Final answer
    x = 58,588.85

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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.