Home / 47,979.78-66,223.96-32,691.60

Finding the Fourth Proportional to 47,979.78, 66,223.96 and 32,691.60

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Solution

The fourth proportional to 47,979.78, 66,223.96 and 32,691.60 is: 45,122.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,979.78 : 66,223.96 = 32,691.60 : x
  2. Step 2: Convert to fraction form
    47,979.78/66,223.96 = 32,691.60/x
  3. Step 3: Cross multiply
    47,979.78x = 66,223.96 × 32,691.60
  4. Step 4: Simplify right side
    47,979.78x = 2,164,967,210.74
  5. Step 5: Solve for x
    x = 2,164,967,210.74/47,979.78
  6. Step 6: Final answer
    x = 45,122.49

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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.