Home / 71,124.10-98,150.52-39,290.92

Finding the Fourth Proportional to 71,124.10, 98,150.52 and 39,290.92

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Solution

The fourth proportional to 71,124.10, 98,150.52 and 39,290.92 is: 54,221.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,124.10 : 98,150.52 = 39,290.92 : x
  2. Step 2: Convert to fraction form
    71,124.10/98,150.52 = 39,290.92/x
  3. Step 3: Cross multiply
    71,124.10x = 98,150.52 × 39,290.92
  4. Step 4: Simplify right side
    71,124.10x = 3,856,424,229.28
  5. Step 5: Solve for x
    x = 3,856,424,229.28/71,124.10
  6. Step 6: Final answer
    x = 54,221.06

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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.