Home / 87,587.72-120,871.04-47,301.48

Finding the Fourth Proportional to 87,587.72, 120,871.04 and 47,301.48

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Solution

The fourth proportional to 87,587.72, 120,871.04 and 47,301.48 is: 65,276.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,587.72 : 120,871.04 = 47,301.48 : x
  2. Step 2: Convert to fraction form
    87,587.72/120,871.04 = 47,301.48/x
  3. Step 3: Cross multiply
    87,587.72x = 120,871.04 × 47,301.48
  4. Step 4: Simplify right side
    87,587.72x = 5,717,379,199.39
  5. Step 5: Solve for x
    x = 5,717,379,199.39/87,587.72
  6. Step 6: Final answer
    x = 65,276.04

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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.