Home / 47,909.90-66,115.68-27,778.52

Finding the Fourth Proportional to 47,909.90, 66,115.68 and 27,778.52

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Solution

The fourth proportional to 47,909.90, 66,115.68 and 27,778.52 is: 38,334.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,909.90 : 66,115.68 = 27,778.52 : x
  2. Step 2: Convert to fraction form
    47,909.90/66,115.68 = 27,778.52/x
  3. Step 3: Cross multiply
    47,909.90x = 66,115.68 × 27,778.52
  4. Step 4: Simplify right side
    47,909.90x = 1,836,595,739.19
  5. Step 5: Solve for x
    x = 1,836,595,739.19/47,909.90
  6. Step 6: Final answer
    x = 38,334.37

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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.