Home / 52,278.94-72,144.79-28,405.70

Finding the Fourth Proportional to 52,278.94, 72,144.79 and 28,405.70

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Solution

The fourth proportional to 52,278.94, 72,144.79 and 28,405.70 is: 39,199.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,278.94 : 72,144.79 = 28,405.70 : x
  2. Step 2: Convert to fraction form
    52,278.94/72,144.79 = 28,405.70/x
  3. Step 3: Cross multiply
    52,278.94x = 72,144.79 × 28,405.70
  4. Step 4: Simplify right side
    52,278.94x = 2,049,323,261.30
  5. Step 5: Solve for x
    x = 2,049,323,261.30/52,278.94
  6. Step 6: Final answer
    x = 39,199.79

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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.