Home / 75,828.76-113,658.39-28,398.20

Finding the Fourth Proportional to 75,828.76, 113,658.39 and 28,398.20

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Solution

The fourth proportional to 75,828.76, 113,658.39 and 28,398.20 is: 42,565.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,828.76 : 113,658.39 = 28,398.20 : x
  2. Step 2: Convert to fraction form
    75,828.76/113,658.39 = 28,398.20/x
  3. Step 3: Cross multiply
    75,828.76x = 113,658.39 × 28,398.20
  4. Step 4: Simplify right side
    75,828.76x = 3,227,693,122.61
  5. Step 5: Solve for x
    x = 3,227,693,122.61/75,828.76
  6. Step 6: Final answer
    x = 42,565.55

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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.