Home / 70,951.20-97,910.62-39,120.13

Finding the Fourth Proportional to 70,951.20, 97,910.62 and 39,120.13

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Solution

The fourth proportional to 70,951.20, 97,910.62 and 39,120.13 is: 53,984.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,951.20 : 97,910.62 = 39,120.13 : x
  2. Step 2: Convert to fraction form
    70,951.20/97,910.62 = 39,120.13/x
  3. Step 3: Cross multiply
    70,951.20x = 97,910.62 × 39,120.13
  4. Step 4: Simplify right side
    70,951.20x = 3,830,276,182.78
  5. Step 5: Solve for x
    x = 3,830,276,182.78/70,951.20
  6. Step 6: Final answer
    x = 53,984.66

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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.