Home / 51,517.47-71,100.09-31,386.18

Finding the Fourth Proportional to 51,517.47, 71,100.09 and 31,386.18

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Solution

The fourth proportional to 51,517.47, 71,100.09 and 31,386.18 is: 43,316.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,517.47 : 71,100.09 = 31,386.18 : x
  2. Step 2: Convert to fraction form
    51,517.47/71,100.09 = 31,386.18/x
  3. Step 3: Cross multiply
    51,517.47x = 71,100.09 × 31,386.18
  4. Step 4: Simplify right side
    51,517.47x = 2,231,560,222.76
  5. Step 5: Solve for x
    x = 2,231,560,222.76/51,517.47
  6. Step 6: Final answer
    x = 43,316.57

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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.