Home / 276,747.46-415,132.13-77,085.30

Finding the Fourth Proportional to 276,747.46, 415,132.13 and 77,085.30

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Solution

The fourth proportional to 276,747.46, 415,132.13 and 77,085.30 is: 115,630.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,747.46 : 415,132.13 = 77,085.30 : x
  2. Step 2: Convert to fraction form
    276,747.46/415,132.13 = 77,085.30/x
  3. Step 3: Cross multiply
    276,747.46x = 415,132.13 × 77,085.30
  4. Step 4: Simplify right side
    276,747.46x = 32,000,582,319.60
  5. Step 5: Solve for x
    x = 32,000,582,319.60/276,747.46
  6. Step 6: Final answer
    x = 115,630.99

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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.