Home / 71,385.12-98,512.14-39,554.44

Finding the Fourth Proportional to 71,385.12, 98,512.14 and 39,554.44

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Solution

The fourth proportional to 71,385.12, 98,512.14 and 39,554.44 is: 54,585.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,385.12 : 98,512.14 = 39,554.44 : x
  2. Step 2: Convert to fraction form
    71,385.12/98,512.14 = 39,554.44/x
  3. Step 3: Cross multiply
    71,385.12x = 98,512.14 × 39,554.44
  4. Step 4: Simplify right side
    71,385.12x = 3,896,592,530.90
  5. Step 5: Solve for x
    x = 3,896,592,530.90/71,385.12
  6. Step 6: Final answer
    x = 54,585.50

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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.