Home / 71,408.47-98,536.97-39,576.69

Finding the Fourth Proportional to 71,408.47, 98,536.97 and 39,576.69

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Solution

The fourth proportional to 71,408.47, 98,536.97 and 39,576.69 is: 54,612.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,408.47 : 98,536.97 = 39,576.69 : x
  2. Step 2: Convert to fraction form
    71,408.47/98,536.97 = 39,576.69/x
  3. Step 3: Cross multiply
    71,408.47x = 98,536.97 × 39,576.69
  4. Step 4: Simplify right side
    71,408.47x = 3,899,767,115.23
  5. Step 5: Solve for x
    x = 3,899,767,115.23/71,408.47
  6. Step 6: Final answer
    x = 54,612.11

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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.