Home / 115,034.10-172,517.10-51,817.68

Finding the Fourth Proportional to 115,034.10, 172,517.10 and 51,817.68

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Solution

The fourth proportional to 115,034.10, 172,517.10 and 51,817.68 is: 77,711.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,034.10 : 172,517.10 = 51,817.68 : x
  2. Step 2: Convert to fraction form
    115,034.10/172,517.10 = 51,817.68/x
  3. Step 3: Cross multiply
    115,034.10x = 172,517.10 × 51,817.68
  4. Step 4: Simplify right side
    115,034.10x = 8,939,435,882.33
  5. Step 5: Solve for x
    x = 8,939,435,882.33/115,034.10
  6. Step 6: Final answer
    x = 77,711.18

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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.