Home / 75,777.12-113,586.40-25,839.72

Finding the Fourth Proportional to 75,777.12, 113,586.40 and 25,839.72

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Solution

The fourth proportional to 75,777.12, 113,586.40 and 25,839.72 is: 38,732.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,777.12 : 113,586.40 = 25,839.72 : x
  2. Step 2: Convert to fraction form
    75,777.12/113,586.40 = 25,839.72/x
  3. Step 3: Cross multiply
    75,777.12x = 113,586.40 × 25,839.72
  4. Step 4: Simplify right side
    75,777.12x = 2,935,040,771.81
  5. Step 5: Solve for x
    x = 2,935,040,771.81/75,777.12
  6. Step 6: Final answer
    x = 38,732.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.