Home / 52,278.33-72,143.05-28,405.17

Finding the Fourth Proportional to 52,278.33, 72,143.05 and 28,405.17

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Solution

The fourth proportional to 52,278.33, 72,143.05 and 28,405.17 is: 39,198.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,278.33 : 72,143.05 = 28,405.17 : x
  2. Step 2: Convert to fraction form
    52,278.33/72,143.05 = 28,405.17/x
  3. Step 3: Cross multiply
    52,278.33x = 72,143.05 × 28,405.17
  4. Step 4: Simplify right side
    52,278.33x = 2,049,235,850.94
  5. Step 5: Solve for x
    x = 2,049,235,850.94/52,278.33
  6. Step 6: Final answer
    x = 39,198.57

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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.