Home / 71,205.48-98,261.64-39,375.72

Finding the Fourth Proportional to 71,205.48, 98,261.64 and 39,375.72

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Solution

The fourth proportional to 71,205.48, 98,261.64 and 39,375.72 is: 54,337.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,205.48 : 98,261.64 = 39,375.72 : x
  2. Step 2: Convert to fraction form
    71,205.48/98,261.64 = 39,375.72/x
  3. Step 3: Cross multiply
    71,205.48x = 98,261.64 × 39,375.72
  4. Step 4: Simplify right side
    71,205.48x = 3,869,122,823.38
  5. Step 5: Solve for x
    x = 3,869,122,823.38/71,205.48
  6. Step 6: Final answer
    x = 54,337.43

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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.