Home / 51,988.72-71,659.80-40,638.18

Finding the Fourth Proportional to 51,988.72, 71,659.80 and 40,638.18

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Solution

The fourth proportional to 51,988.72, 71,659.80 and 40,638.18 is: 56,014.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,988.72 : 71,659.80 = 40,638.18 : x
  2. Step 2: Convert to fraction form
    51,988.72/71,659.80 = 40,638.18/x
  3. Step 3: Cross multiply
    51,988.72x = 71,659.80 × 40,638.18
  4. Step 4: Simplify right side
    51,988.72x = 2,912,123,851.16
  5. Step 5: Solve for x
    x = 2,912,123,851.16/51,988.72
  6. Step 6: Final answer
    x = 56,014.53

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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.