Home / 49,818.40-68,719.44-39,191.20

Finding the Fourth Proportional to 49,818.40, 68,719.44 and 39,191.20

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Solution

The fourth proportional to 49,818.40, 68,719.44 and 39,191.20 is: 54,060.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,818.40 : 68,719.44 = 39,191.20 : x
  2. Step 2: Convert to fraction form
    49,818.40/68,719.44 = 39,191.20/x
  3. Step 3: Cross multiply
    49,818.40x = 68,719.44 × 39,191.20
  4. Step 4: Simplify right side
    49,818.40x = 2,693,197,316.93
  5. Step 5: Solve for x
    x = 2,693,197,316.93/49,818.40
  6. Step 6: Final answer
    x = 54,060.29

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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.