Home / 87,656.18-120,969.05-49,417.14

Finding the Fourth Proportional to 87,656.18, 120,969.05 and 49,417.14

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Solution

The fourth proportional to 87,656.18, 120,969.05 and 49,417.14 is: 68,197.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,656.18 : 120,969.05 = 49,417.14 : x
  2. Step 2: Convert to fraction form
    87,656.18/120,969.05 = 49,417.14/x
  3. Step 3: Cross multiply
    87,656.18x = 120,969.05 × 49,417.14
  4. Step 4: Simplify right side
    87,656.18x = 5,977,944,005.61
  5. Step 5: Solve for x
    x = 5,977,944,005.61/87,656.18
  6. Step 6: Final answer
    x = 68,197.64

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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.