Home / 75,836.58-113,754.93-20,432.58

Finding the Fourth Proportional to 75,836.58, 113,754.93 and 20,432.58

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Solution

The fourth proportional to 75,836.58, 113,754.93 and 20,432.58 is: 30,648.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,836.58 : 113,754.93 = 20,432.58 : x
  2. Step 2: Convert to fraction form
    75,836.58/113,754.93 = 20,432.58/x
  3. Step 3: Cross multiply
    75,836.58x = 113,754.93 × 20,432.58
  4. Step 4: Simplify right side
    75,836.58x = 2,324,306,707.62
  5. Step 5: Solve for x
    x = 2,324,306,707.62/75,836.58
  6. Step 6: Final answer
    x = 30,648.89

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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.