Home / 75,982.60-113,972.10-31,560.76

Finding the Fourth Proportional to 75,982.60, 113,972.10 and 31,560.76

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Solution

The fourth proportional to 75,982.60, 113,972.10 and 31,560.76 is: 47,340.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,982.60 : 113,972.10 = 31,560.76 : x
  2. Step 2: Convert to fraction form
    75,982.60/113,972.10 = 31,560.76/x
  3. Step 3: Cross multiply
    75,982.60x = 113,972.10 × 31,560.76
  4. Step 4: Simplify right side
    75,982.60x = 3,597,046,094.80
  5. Step 5: Solve for x
    x = 3,597,046,094.80/75,982.60
  6. Step 6: Final answer
    x = 47,340.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.