Home / 87,585.32-120,868.65-49,862.00

Finding the Fourth Proportional to 87,585.32, 120,868.65 and 49,862.00

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Solution

The fourth proportional to 87,585.32, 120,868.65 and 49,862.00 is: 68,810.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,585.32 : 120,868.65 = 49,862.00 : x
  2. Step 2: Convert to fraction form
    87,585.32/120,868.65 = 49,862.00/x
  3. Step 3: Cross multiply
    87,585.32x = 120,868.65 × 49,862.00
  4. Step 4: Simplify right side
    87,585.32x = 6,026,752,021.96
  5. Step 5: Solve for x
    x = 6,026,752,021.96/87,585.32
  6. Step 6: Final answer
    x = 68,810.07

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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.