Home / 61,144.20-91,716.30-42,117.30

Finding the Fourth Proportional to 61,144.20, 91,716.30 and 42,117.30

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Solution

The fourth proportional to 61,144.20, 91,716.30 and 42,117.30 is: 63,175.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,144.20 : 91,716.30 = 42,117.30 : x
  2. Step 2: Convert to fraction form
    61,144.20/91,716.30 = 42,117.30/x
  3. Step 3: Cross multiply
    61,144.20x = 91,716.30 × 42,117.30
  4. Step 4: Simplify right side
    61,144.20x = 3,862,842,921.99
  5. Step 5: Solve for x
    x = 3,862,842,921.99/61,144.20
  6. Step 6: Final answer
    x = 63,175.95

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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.