Home / 51,687.61-71,340.02-31,540.18

Finding the Fourth Proportional to 51,687.61, 71,340.02 and 31,540.18

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Solution

The fourth proportional to 51,687.61, 71,340.02 and 31,540.18 is: 43,532.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,687.61 : 71,340.02 = 31,540.18 : x
  2. Step 2: Convert to fraction form
    51,687.61/71,340.02 = 31,540.18/x
  3. Step 3: Cross multiply
    51,687.61x = 71,340.02 × 31,540.18
  4. Step 4: Simplify right side
    51,687.61x = 2,250,077,072.00
  5. Step 5: Solve for x
    x = 2,250,077,072.00/51,687.61
  6. Step 6: Final answer
    x = 43,532.23

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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.