Home / 261,055.19-391,583.13-71,517.23

Finding the Fourth Proportional to 261,055.19, 391,583.13 and 71,517.23

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Solution

The fourth proportional to 261,055.19, 391,583.13 and 71,517.23 is: 107,275.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,055.19 : 391,583.13 = 71,517.23 : x
  2. Step 2: Convert to fraction form
    261,055.19/391,583.13 = 71,517.23/x
  3. Step 3: Cross multiply
    261,055.19x = 391,583.13 × 71,517.23
  4. Step 4: Simplify right side
    261,055.19x = 28,004,940,772.33
  5. Step 5: Solve for x
    x = 28,004,940,772.33/261,055.19
  6. Step 6: Final answer
    x = 107,275.94

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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.