Home / 52,203.12-72,040.50-28,329.78

Finding the Fourth Proportional to 52,203.12, 72,040.50 and 28,329.78

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Solution

The fourth proportional to 52,203.12, 72,040.50 and 28,329.78 is: 39,095.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,203.12 : 72,040.50 = 28,329.78 : x
  2. Step 2: Convert to fraction form
    52,203.12/72,040.50 = 28,329.78/x
  3. Step 3: Cross multiply
    52,203.12x = 72,040.50 × 28,329.78
  4. Step 4: Simplify right side
    52,203.12x = 2,040,891,516.09
  5. Step 5: Solve for x
    x = 2,040,891,516.09/52,203.12
  6. Step 6: Final answer
    x = 39,095.20

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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.