Home / 52,261.13-72,121.67-28,387.80

Finding the Fourth Proportional to 52,261.13, 72,121.67 and 28,387.80

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Solution

The fourth proportional to 52,261.13, 72,121.67 and 28,387.80 is: 39,175.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,261.13 : 72,121.67 = 28,387.80 : x
  2. Step 2: Convert to fraction form
    52,261.13/72,121.67 = 28,387.80/x
  3. Step 3: Cross multiply
    52,261.13x = 72,121.67 × 28,387.80
  4. Step 4: Simplify right side
    52,261.13x = 2,047,375,401.69
  5. Step 5: Solve for x
    x = 2,047,375,401.69/52,261.13
  6. Step 6: Final answer
    x = 39,175.88

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1.5x scale

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.