Home / 49,830.60-74,765.81-20,250.75

Finding the Fourth Proportional to 49,830.60, 74,765.81 and 20,250.75

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Solution

The fourth proportional to 49,830.60, 74,765.81 and 20,250.75 is: 30,384.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,830.60 : 74,765.81 = 20,250.75 : x
  2. Step 2: Convert to fraction form
    49,830.60/74,765.81 = 20,250.75/x
  3. Step 3: Cross multiply
    49,830.60x = 74,765.81 × 20,250.75
  4. Step 4: Simplify right side
    49,830.60x = 1,514,063,726.86
  5. Step 5: Solve for x
    x = 1,514,063,726.86/49,830.60
  6. Step 6: Final answer
    x = 30,384.22

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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.