Home / 45,721.11-63,105-27,821.88

Finding the Fourth Proportional to 45,721.11, 63,105 and 27,821.88

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Solution

The fourth proportional to 45,721.11, 63,105 and 27,821.88 is: 38,400.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,721.11 : 63,105 = 27,821.88 : x
  2. Step 2: Convert to fraction form
    45,721.11/63,105 = 27,821.88/x
  3. Step 3: Cross multiply
    45,721.11x = 63,105 × 27,821.88
  4. Step 4: Simplify right side
    45,721.11x = 1,755,699,737.40
  5. Step 5: Solve for x
    x = 1,755,699,737.40/45,721.11
  6. Step 6: Final answer
    x = 38,400.20

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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.