Home / 87,819.78-121,191.51-47,533.89

Finding the Fourth Proportional to 87,819.78, 121,191.51 and 47,533.89

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Solution

The fourth proportional to 87,819.78, 121,191.51 and 47,533.89 is: 65,596.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,819.78 : 121,191.51 = 47,533.89 : x
  2. Step 2: Convert to fraction form
    87,819.78/121,191.51 = 47,533.89/x
  3. Step 3: Cross multiply
    87,819.78x = 121,191.51 × 47,533.89
  4. Step 4: Simplify right side
    87,819.78x = 5,760,703,905.27
  5. Step 5: Solve for x
    x = 5,760,703,905.27/87,819.78
  6. Step 6: Final answer
    x = 65,596.88

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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.