Home / 78,552.85-108,404.23-42,743.04

Finding the Fourth Proportional to 78,552.85, 108,404.23 and 42,743.04

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Solution

The fourth proportional to 78,552.85, 108,404.23 and 42,743.04 is: 58,986.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,552.85 : 108,404.23 = 42,743.04 : x
  2. Step 2: Convert to fraction form
    78,552.85/108,404.23 = 42,743.04/x
  3. Step 3: Cross multiply
    78,552.85x = 108,404.23 × 42,743.04
  4. Step 4: Simplify right side
    78,552.85x = 4,633,526,125.34
  5. Step 5: Solve for x
    x = 4,633,526,125.34/78,552.85
  6. Step 6: Final answer
    x = 58,986.10

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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.