Home / 82,561.60-123,891.54-57,280.96

Finding the Fourth Proportional to 82,561.60, 123,891.54 and 57,280.96

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Solution

The fourth proportional to 82,561.60, 123,891.54 and 57,280.96 is: 85,955.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,561.60 : 123,891.54 = 57,280.96 : x
  2. Step 2: Convert to fraction form
    82,561.60/123,891.54 = 57,280.96/x
  3. Step 3: Cross multiply
    82,561.60x = 123,891.54 × 57,280.96
  4. Step 4: Simplify right side
    82,561.60x = 7,096,626,347.08
  5. Step 5: Solve for x
    x = 7,096,626,347.08/82,561.60
  6. Step 6: Final answer
    x = 85,955.53

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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.