Home / 42,184.28-63,144.66-28,155.80

Finding the Fourth Proportional to 42,184.28, 63,144.66 and 28,155.80

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Solution

The fourth proportional to 42,184.28, 63,144.66 and 28,155.80 is: 42,145.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,184.28 : 63,144.66 = 28,155.80 : x
  2. Step 2: Convert to fraction form
    42,184.28/63,144.66 = 28,155.80/x
  3. Step 3: Cross multiply
    42,184.28x = 63,144.66 × 28,155.80
  4. Step 4: Simplify right side
    42,184.28x = 1,777,888,418.03
  5. Step 5: Solve for x
    x = 1,777,888,418.03/42,184.28
  6. Step 6: Final answer
    x = 42,145.76

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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.