Home / 76,956.78-115,475.13-58,231.28

Finding the Fourth Proportional to 76,956.78, 115,475.13 and 58,231.28

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Solution

The fourth proportional to 76,956.78, 115,475.13 and 58,231.28 is: 87,377.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,956.78 : 115,475.13 = 58,231.28 : x
  2. Step 2: Convert to fraction form
    76,956.78/115,475.13 = 58,231.28/x
  3. Step 3: Cross multiply
    76,956.78x = 115,475.13 × 58,231.28
  4. Step 4: Simplify right side
    76,956.78x = 6,724,264,050.69
  5. Step 5: Solve for x
    x = 6,724,264,050.69/76,956.78
  6. Step 6: Final answer
    x = 87,377.15

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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.