Home / 54,251.40-81,377.10-51,400.20

Finding the Fourth Proportional to 54,251.40, 81,377.10 and 51,400.20

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Solution

The fourth proportional to 54,251.40, 81,377.10 and 51,400.20 is: 77,100.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,251.40 : 81,377.10 = 51,400.20 : x
  2. Step 2: Convert to fraction form
    54,251.40/81,377.10 = 51,400.20/x
  3. Step 3: Cross multiply
    54,251.40x = 81,377.10 × 51,400.20
  4. Step 4: Simplify right side
    54,251.40x = 4,182,799,215.42
  5. Step 5: Solve for x
    x = 4,182,799,215.42/54,251.40
  6. Step 6: Final answer
    x = 77,100.30

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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.