Home / 83,625.11-115,401-47,325.88

Finding the Fourth Proportional to 83,625.11, 115,401 and 47,325.88

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Solution

The fourth proportional to 83,625.11, 115,401 and 47,325.88 is: 65,308.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,625.11 : 115,401 = 47,325.88 : x
  2. Step 2: Convert to fraction form
    83,625.11/115,401 = 47,325.88/x
  3. Step 3: Cross multiply
    83,625.11x = 115,401 × 47,325.88
  4. Step 4: Simplify right side
    83,625.11x = 5,461,453,877.88
  5. Step 5: Solve for x
    x = 5,461,453,877.88/83,625.11
  6. Step 6: Final answer
    x = 65,308.78

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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.