Home / 52,278.89-72,144.98-28,405.59

Finding the Fourth Proportional to 52,278.89, 72,144.98 and 28,405.59

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Solution

The fourth proportional to 52,278.89, 72,144.98 and 28,405.59 is: 39,199.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,278.89 : 72,144.98 = 28,405.59 : x
  2. Step 2: Convert to fraction form
    52,278.89/72,144.98 = 28,405.59/x
  3. Step 3: Cross multiply
    52,278.89x = 72,144.98 × 28,405.59
  4. Step 4: Simplify right side
    52,278.89x = 2,049,320,580.41
  5. Step 5: Solve for x
    x = 2,049,320,580.41/52,278.89
  6. Step 6: Final answer
    x = 39,199.78

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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.