Home / 47,711.70-71,567.55-27,980.10

Finding the Fourth Proportional to 47,711.70, 71,567.55 and 27,980.10

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Solution

The fourth proportional to 47,711.70, 71,567.55 and 27,980.10 is: 41,970.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,711.70 : 71,567.55 = 27,980.10 : x
  2. Step 2: Convert to fraction form
    47,711.70/71,567.55 = 27,980.10/x
  3. Step 3: Cross multiply
    47,711.70x = 71,567.55 × 27,980.10
  4. Step 4: Simplify right side
    47,711.70x = 2,002,467,205.76
  5. Step 5: Solve for x
    x = 2,002,467,205.76/47,711.70
  6. Step 6: Final answer
    x = 41,970.15

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.