Home / 51,689.50-71,342.62-31,542.06

Finding the Fourth Proportional to 51,689.50, 71,342.62 and 31,542.06

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Solution

The fourth proportional to 51,689.50, 71,342.62 and 31,542.06 is: 43,534.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,689.50 : 71,342.62 = 31,542.06 : x
  2. Step 2: Convert to fraction form
    51,689.50/71,342.62 = 31,542.06/x
  3. Step 3: Cross multiply
    51,689.50x = 71,342.62 × 31,542.06
  4. Step 4: Simplify right side
    51,689.50x = 2,250,293,200.60
  5. Step 5: Solve for x
    x = 2,250,293,200.60/51,689.50
  6. Step 6: Final answer
    x = 43,534.82

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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.