Home / 47,314.80-70,972.20-40,278.60

Finding the Fourth Proportional to 47,314.80, 70,972.20 and 40,278.60

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Solution

The fourth proportional to 47,314.80, 70,972.20 and 40,278.60 is: 60,417.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,314.80 : 70,972.20 = 40,278.60 : x
  2. Step 2: Convert to fraction form
    47,314.80/70,972.20 = 40,278.60/x
  3. Step 3: Cross multiply
    47,314.80x = 70,972.20 × 40,278.60
  4. Step 4: Simplify right side
    47,314.80x = 2,858,660,854.92
  5. Step 5: Solve for x
    x = 2,858,660,854.92/47,314.80
  6. Step 6: Final answer
    x = 60,417.90

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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.