Home / 87,587.26-120,870.40-47,301.02

Finding the Fourth Proportional to 87,587.26, 120,870.40 and 47,301.02

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Solution

The fourth proportional to 87,587.26, 120,870.40 and 47,301.02 is: 65,275.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,587.26 : 120,870.40 = 47,301.02 : x
  2. Step 2: Convert to fraction form
    87,587.26/120,870.40 = 47,301.02/x
  3. Step 3: Cross multiply
    87,587.26x = 120,870.40 × 47,301.02
  4. Step 4: Simplify right side
    87,587.26x = 5,717,292,366.95
  5. Step 5: Solve for x
    x = 5,717,292,366.95/87,587.26
  6. Step 6: Final answer
    x = 65,275.39

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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.