Home / 42,110.28-63,180-28,126.44

Finding the Fourth Proportional to 42,110.28, 63,180 and 28,126.44

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Solution

The fourth proportional to 42,110.28, 63,180 and 28,126.44 is: 42,199.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,110.28 : 63,180 = 28,126.44 : x
  2. Step 2: Convert to fraction form
    42,110.28/63,180 = 28,126.44/x
  3. Step 3: Cross multiply
    42,110.28x = 63,180 × 28,126.44
  4. Step 4: Simplify right side
    42,110.28x = 1,777,028,479.20
  5. Step 5: Solve for x
    x = 1,777,028,479.20/42,110.28
  6. Step 6: Final answer
    x = 42,199.40

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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.