Home / 87,859.90-121,244.07-49,621.02

Finding the Fourth Proportional to 87,859.90, 121,244.07 and 49,621.02

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Solution

The fourth proportional to 87,859.90, 121,244.07 and 49,621.02 is: 68,475.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,859.90 : 121,244.07 = 49,621.02 : x
  2. Step 2: Convert to fraction form
    87,859.90/121,244.07 = 49,621.02/x
  3. Step 3: Cross multiply
    87,859.90x = 121,244.07 × 49,621.02
  4. Step 4: Simplify right side
    87,859.90x = 6,016,254,422.35
  5. Step 5: Solve for x
    x = 6,016,254,422.35/87,859.90
  6. Step 6: Final answer
    x = 68,475.54

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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.