Home / 71,215.43-98,302.01-41,012.78

Finding the Fourth Proportional to 71,215.43, 98,302.01 and 41,012.78

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Solution

The fourth proportional to 71,215.43, 98,302.01 and 41,012.78 is: 56,611.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,215.43 : 98,302.01 = 41,012.78 : x
  2. Step 2: Convert to fraction form
    71,215.43/98,302.01 = 41,012.78/x
  3. Step 3: Cross multiply
    71,215.43x = 98,302.01 × 41,012.78
  4. Step 4: Simplify right side
    71,215.43x = 4,031,638,013.11
  5. Step 5: Solve for x
    x = 4,031,638,013.11/71,215.43
  6. Step 6: Final answer
    x = 56,611.86

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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.