Home / 52,278.39-72,144.29-28,405.09

Finding the Fourth Proportional to 52,278.39, 72,144.29 and 28,405.09

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Solution

The fourth proportional to 52,278.39, 72,144.29 and 28,405.09 is: 39,199.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,278.39 : 72,144.29 = 28,405.09 : x
  2. Step 2: Convert to fraction form
    52,278.39/72,144.29 = 28,405.09/x
  3. Step 3: Cross multiply
    52,278.39x = 72,144.29 × 28,405.09
  4. Step 4: Simplify right side
    52,278.39x = 2,049,265,050.44
  5. Step 5: Solve for x
    x = 2,049,265,050.44/52,278.39
  6. Step 6: Final answer
    x = 39,199.08

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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.