Home / 87,175.35-120,158.22-61,648.74

Finding the Fourth Proportional to 87,175.35, 120,158.22 and 61,648.74

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Solution

The fourth proportional to 87,175.35, 120,158.22 and 61,648.74 is: 84,973.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,175.35 : 120,158.22 = 61,648.74 : x
  2. Step 2: Convert to fraction form
    87,175.35/120,158.22 = 61,648.74/x
  3. Step 3: Cross multiply
    87,175.35x = 120,158.22 × 61,648.74
  4. Step 4: Simplify right side
    87,175.35x = 7,407,602,863.64
  5. Step 5: Solve for x
    x = 7,407,602,863.64/87,175.35
  6. Step 6: Final answer
    x = 84,973.59

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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.