Home / 276,869.90-415,401.22-87,359.52

Finding the Fourth Proportional to 276,869.90, 415,401.22 and 87,359.52

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Solution

The fourth proportional to 276,869.90, 415,401.22 and 87,359.52 is: 131,069.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,869.90 : 415,401.22 = 87,359.52 : x
  2. Step 2: Convert to fraction form
    276,869.90/415,401.22 = 87,359.52/x
  3. Step 3: Cross multiply
    276,869.90x = 415,401.22 × 87,359.52
  4. Step 4: Simplify right side
    276,869.90x = 36,289,251,186.61
  5. Step 5: Solve for x
    x = 36,289,251,186.61/276,869.90
  6. Step 6: Final answer
    x = 131,069.69

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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.