Home / 71,176.86-98,220.15-39,343.68

Finding the Fourth Proportional to 71,176.86, 98,220.15 and 39,343.68

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Solution

The fourth proportional to 71,176.86, 98,220.15 and 39,343.68 is: 54,292.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,176.86 : 98,220.15 = 39,343.68 : x
  2. Step 2: Convert to fraction form
    71,176.86/98,220.15 = 39,343.68/x
  3. Step 3: Cross multiply
    71,176.86x = 98,220.15 × 39,343.68
  4. Step 4: Simplify right side
    71,176.86x = 3,864,342,151.15
  5. Step 5: Solve for x
    x = 3,864,342,151.15/71,176.86
  6. Step 6: Final answer
    x = 54,292.11

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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.