Home / 72,280.20-108,420.30-25,537.80

Finding the Fourth Proportional to 72,280.20, 108,420.30 and 25,537.80

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Solution

The fourth proportional to 72,280.20, 108,420.30 and 25,537.80 is: 38,306.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,280.20 : 108,420.30 = 25,537.80 : x
  2. Step 2: Convert to fraction form
    72,280.20/108,420.30 = 25,537.80/x
  3. Step 3: Cross multiply
    72,280.20x = 108,420.30 × 25,537.80
  4. Step 4: Simplify right side
    72,280.20x = 2,768,815,937.34
  5. Step 5: Solve for x
    x = 2,768,815,937.34/72,280.20
  6. Step 6: Final answer
    x = 38,306.70

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1.5x scale

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.