Home / 78,857.03-118,177.00-34,520.87

Finding the Fourth Proportional to 78,857.03, 118,177.00 and 34,520.87

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Solution

The fourth proportional to 78,857.03, 118,177.00 and 34,520.87 is: 51,733.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,857.03 : 118,177.00 = 34,520.87 : x
  2. Step 2: Convert to fraction form
    78,857.03/118,177.00 = 34,520.87/x
  3. Step 3: Cross multiply
    78,857.03x = 118,177.00 × 34,520.87
  4. Step 4: Simplify right side
    78,857.03x = 4,079,572,176.80
  5. Step 5: Solve for x
    x = 4,079,572,176.80/78,857.03
  6. Step 6: Final answer
    x = 51,733.78

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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.