Home / 87,368.52-120,569.40-49,643.04

Finding the Fourth Proportional to 87,368.52, 120,569.40 and 49,643.04

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Solution

The fourth proportional to 87,368.52, 120,569.40 and 49,643.04 is: 68,507.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,368.52 : 120,569.40 = 49,643.04 : x
  2. Step 2: Convert to fraction form
    87,368.52/120,569.40 = 49,643.04/x
  3. Step 3: Cross multiply
    87,368.52x = 120,569.40 × 49,643.04
  4. Step 4: Simplify right side
    87,368.52x = 5,985,431,546.98
  5. Step 5: Solve for x
    x = 5,985,431,546.98/87,368.52
  6. Step 6: Final answer
    x = 68,507.87

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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.