Home / 71,072.95-98,082.20-39,243.86

Finding the Fourth Proportional to 71,072.95, 98,082.20 and 39,243.86

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Solution

The fourth proportional to 71,072.95, 98,082.20 and 39,243.86 is: 54,157.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,072.95 : 98,082.20 = 39,243.86 : x
  2. Step 2: Convert to fraction form
    71,072.95/98,082.20 = 39,243.86/x
  3. Step 3: Cross multiply
    71,072.95x = 98,082.20 × 39,243.86
  4. Step 4: Simplify right side
    71,072.95x = 3,849,124,125.29
  5. Step 5: Solve for x
    x = 3,849,124,125.29/71,072.95
  6. Step 6: Final answer
    x = 54,157.37

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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.