Home / 56,685.81-78,227.13-31,195.11

Finding the Fourth Proportional to 56,685.81, 78,227.13 and 31,195.11

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Solution

The fourth proportional to 56,685.81, 78,227.13 and 31,195.11 is: 43,049.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,685.81 : 78,227.13 = 31,195.11 : x
  2. Step 2: Convert to fraction form
    56,685.81/78,227.13 = 31,195.11/x
  3. Step 3: Cross multiply
    56,685.81x = 78,227.13 × 31,195.11
  4. Step 4: Simplify right side
    56,685.81x = 2,440,304,335.67
  5. Step 5: Solve for x
    x = 2,440,304,335.67/56,685.81
  6. Step 6: Final answer
    x = 43,049.65

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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.