Home / 87,291.32-120,465.50-49,569.08

Finding the Fourth Proportional to 87,291.32, 120,465.50 and 49,569.08

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Solution

The fourth proportional to 87,291.32, 120,465.50 and 49,569.08 is: 68,407.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,291.32 : 120,465.50 = 49,569.08 : x
  2. Step 2: Convert to fraction form
    87,291.32/120,465.50 = 49,569.08/x
  3. Step 3: Cross multiply
    87,291.32x = 120,465.50 × 49,569.08
  4. Step 4: Simplify right side
    87,291.32x = 5,971,364,006.74
  5. Step 5: Solve for x
    x = 5,971,364,006.74/87,291.32
  6. Step 6: Final answer
    x = 68,407.31

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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.