Home / 54,717.61-82,084.08-19,170.78

Finding the Fourth Proportional to 54,717.61, 82,084.08 and 19,170.78

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Solution

The fourth proportional to 54,717.61, 82,084.08 and 19,170.78 is: 28,758.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,717.61 : 82,084.08 = 19,170.78 : x
  2. Step 2: Convert to fraction form
    54,717.61/82,084.08 = 19,170.78/x
  3. Step 3: Cross multiply
    54,717.61x = 82,084.08 × 19,170.78
  4. Step 4: Simplify right side
    54,717.61x = 1,573,615,839.18
  5. Step 5: Solve for x
    x = 1,573,615,839.18/54,717.61
  6. Step 6: Final answer
    x = 28,758.86

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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.