Home / 45,991.28-63,456.72-28,079.76

Finding the Fourth Proportional to 45,991.28, 63,456.72 and 28,079.76

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Solution

The fourth proportional to 45,991.28, 63,456.72 and 28,079.76 is: 38,743.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,991.28 : 63,456.72 = 28,079.76 : x
  2. Step 2: Convert to fraction form
    45,991.28/63,456.72 = 28,079.76/x
  3. Step 3: Cross multiply
    45,991.28x = 63,456.72 × 28,079.76
  4. Step 4: Simplify right side
    45,991.28x = 1,781,849,467.99
  5. Step 5: Solve for x
    x = 1,781,849,467.99/45,991.28
  6. Step 6: Final answer
    x = 38,743.20

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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.