Home / 52,278.58-72,143.40-28,405.42

Finding the Fourth Proportional to 52,278.58, 72,143.40 and 28,405.42

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Solution

The fourth proportional to 52,278.58, 72,143.40 and 28,405.42 is: 39,198.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,278.58 : 72,143.40 = 28,405.42 : x
  2. Step 2: Convert to fraction form
    52,278.58/72,143.40 = 28,405.42/x
  3. Step 3: Cross multiply
    52,278.58x = 72,143.40 × 28,405.42
  4. Step 4: Simplify right side
    52,278.58x = 2,049,263,749.42
  5. Step 5: Solve for x
    x = 2,049,263,749.42/52,278.58
  6. Step 6: Final answer
    x = 39,198.92

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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.