Home / 87,797.12-121,159.46-49,557.15

Finding the Fourth Proportional to 87,797.12, 121,159.46 and 49,557.15

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Solution

The fourth proportional to 87,797.12, 121,159.46 and 49,557.15 is: 68,388.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,797.12 : 121,159.46 = 49,557.15 : x
  2. Step 2: Convert to fraction form
    87,797.12/121,159.46 = 49,557.15/x
  3. Step 3: Cross multiply
    87,797.12x = 121,159.46 × 49,557.15
  4. Step 4: Simplify right side
    87,797.12x = 6,004,317,657.03
  5. Step 5: Solve for x
    x = 6,004,317,657.03/87,797.12
  6. Step 6: Final answer
    x = 68,388.55

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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.