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Finding the Fourth Proportional to 52,321.80, 72,202.11 and 28,447.65

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Solution

The fourth proportional to 52,321.80, 72,202.11 and 28,447.65 is: 39,256.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,321.80 : 72,202.11 = 28,447.65 : x
  2. Step 2: Convert to fraction form
    52,321.80/72,202.11 = 28,447.65/x
  3. Step 3: Cross multiply
    52,321.80x = 72,202.11 × 28,447.65
  4. Step 4: Simplify right side
    52,321.80x = 2,053,980,354.54
  5. Step 5: Solve for x
    x = 2,053,980,354.54/52,321.80
  6. Step 6: Final answer
    x = 39,256.68

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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.