Home / 54,279.40-81,419.10-40,282.60

Finding the Fourth Proportional to 54,279.40, 81,419.10 and 40,282.60

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Solution

The fourth proportional to 54,279.40, 81,419.10 and 40,282.60 is: 60,423.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,279.40 : 81,419.10 = 40,282.60 : x
  2. Step 2: Convert to fraction form
    54,279.40/81,419.10 = 40,282.60/x
  3. Step 3: Cross multiply
    54,279.40x = 81,419.10 × 40,282.60
  4. Step 4: Simplify right side
    54,279.40x = 3,279,773,037.66
  5. Step 5: Solve for x
    x = 3,279,773,037.66/54,279.40
  6. Step 6: Final answer
    x = 60,423.90

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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.