Home / 42,102.78-63,122.57-25,459.40

Finding the Fourth Proportional to 42,102.78, 63,122.57 and 25,459.40

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Solution

The fourth proportional to 42,102.78, 63,122.57 and 25,459.40 is: 38,169.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,102.78 : 63,122.57 = 25,459.40 : x
  2. Step 2: Convert to fraction form
    42,102.78/63,122.57 = 25,459.40/x
  3. Step 3: Cross multiply
    42,102.78x = 63,122.57 × 25,459.40
  4. Step 4: Simplify right side
    42,102.78x = 1,607,062,758.66
  5. Step 5: Solve for x
    x = 1,607,062,758.66/42,102.78
  6. Step 6: Final answer
    x = 38,169.99

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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.