Home / 87,948.30-121,361.43-49,711.11

Finding the Fourth Proportional to 87,948.30, 121,361.43 and 49,711.11

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Solution

The fourth proportional to 87,948.30, 121,361.43 and 49,711.11 is: 68,597.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,948.30 : 121,361.43 = 49,711.11 : x
  2. Step 2: Convert to fraction form
    87,948.30/121,361.43 = 49,711.11/x
  3. Step 3: Cross multiply
    87,948.30x = 121,361.43 × 49,711.11
  4. Step 4: Simplify right side
    87,948.30x = 6,033,011,396.49
  5. Step 5: Solve for x
    x = 6,033,011,396.49/87,948.30
  6. Step 6: Final answer
    x = 68,597.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.