Home / 42,183.28-63,143.16-28,154.80

Finding the Fourth Proportional to 42,183.28, 63,143.16 and 28,154.80

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Solution

The fourth proportional to 42,183.28, 63,143.16 and 28,154.80 is: 42,144.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,183.28 : 63,143.16 = 28,154.80 : x
  2. Step 2: Convert to fraction form
    42,183.28/63,143.16 = 28,154.80/x
  3. Step 3: Cross multiply
    42,183.28x = 63,143.16 × 28,154.80
  4. Step 4: Simplify right side
    42,183.28x = 1,777,783,041.17
  5. Step 5: Solve for x
    x = 1,777,783,041.17/42,183.28
  6. Step 6: Final answer
    x = 42,144.26

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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.