Home / 276,731.90-415,098.15-77,052.72

Finding the Fourth Proportional to 276,731.90, 415,098.15 and 77,052.72

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Solution

The fourth proportional to 276,731.90, 415,098.15 and 77,052.72 is: 115,579.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,731.90 : 415,098.15 = 77,052.72 : x
  2. Step 2: Convert to fraction form
    276,731.90/415,098.15 = 77,052.72/x
  3. Step 3: Cross multiply
    276,731.90x = 415,098.15 × 77,052.72
  4. Step 4: Simplify right side
    276,731.90x = 31,984,441,524.47
  5. Step 5: Solve for x
    x = 31,984,441,524.47/276,731.90
  6. Step 6: Final answer
    x = 115,579.16

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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.