Home / 71,312.46-98,408.94-39,045.66

Finding the Fourth Proportional to 71,312.46, 98,408.94 and 39,045.66

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Solution

The fourth proportional to 71,312.46, 98,408.94 and 39,045.66 is: 53,881.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,312.46 : 98,408.94 = 39,045.66 : x
  2. Step 2: Convert to fraction form
    71,312.46/98,408.94 = 39,045.66/x
  3. Step 3: Cross multiply
    71,312.46x = 98,408.94 × 39,045.66
  4. Step 4: Simplify right side
    71,312.46x = 3,842,442,012.20
  5. Step 5: Solve for x
    x = 3,842,442,012.20/71,312.46
  6. Step 6: Final answer
    x = 53,881.78

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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.