Home / 82,242.68-113,436.21-56,758.70

Finding the Fourth Proportional to 82,242.68, 113,436.21 and 56,758.70

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Solution

The fourth proportional to 82,242.68, 113,436.21 and 56,758.70 is: 78,286.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,242.68 : 113,436.21 = 56,758.70 : x
  2. Step 2: Convert to fraction form
    82,242.68/113,436.21 = 56,758.70/x
  3. Step 3: Cross multiply
    82,242.68x = 113,436.21 × 56,758.70
  4. Step 4: Simplify right side
    82,242.68x = 6,438,491,812.53
  5. Step 5: Solve for x
    x = 6,438,491,812.53/82,242.68
  6. Step 6: Final answer
    x = 78,286.50

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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.