Home / 87,889.90-121,285.46-49,651.24

Finding the Fourth Proportional to 87,889.90, 121,285.46 and 49,651.24

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Solution

The fourth proportional to 87,889.90, 121,285.46 and 49,651.24 is: 68,517.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,889.90 : 121,285.46 = 49,651.24 : x
  2. Step 2: Convert to fraction form
    87,889.90/121,285.46 = 49,651.24/x
  3. Step 3: Cross multiply
    87,889.90x = 121,285.46 × 49,651.24
  4. Step 4: Simplify right side
    87,889.90x = 6,021,973,482.97
  5. Step 5: Solve for x
    x = 6,021,973,482.97/87,889.90
  6. Step 6: Final answer
    x = 68,517.24

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1.5x scale

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.