Home / 87,672.57-120,988.11-47,386.33

Finding the Fourth Proportional to 87,672.57, 120,988.11 and 47,386.33

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Solution

The fourth proportional to 87,672.57, 120,988.11 and 47,386.33 is: 65,393.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,672.57 : 120,988.11 = 47,386.33 : x
  2. Step 2: Convert to fraction form
    87,672.57/120,988.11 = 47,386.33/x
  3. Step 3: Cross multiply
    87,672.57x = 120,988.11 × 47,386.33
  4. Step 4: Simplify right side
    87,672.57x = 5,733,182,204.07
  5. Step 5: Solve for x
    x = 5,733,182,204.07/87,672.57
  6. Step 6: Final answer
    x = 65,393.11

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1.5x scale

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.