Home / 86,834.35-130,251.32-57,036.68

Finding the Fourth Proportional to 86,834.35, 130,251.32 and 57,036.68

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Solution

The fourth proportional to 86,834.35, 130,251.32 and 57,036.68 is: 85,554.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,834.35 : 130,251.32 = 57,036.68 : x
  2. Step 2: Convert to fraction form
    86,834.35/130,251.32 = 57,036.68/x
  3. Step 3: Cross multiply
    86,834.35x = 130,251.32 × 57,036.68
  4. Step 4: Simplify right side
    86,834.35x = 7,429,101,921.98
  5. Step 5: Solve for x
    x = 7,429,101,921.98/86,834.35
  6. Step 6: Final answer
    x = 85,554.88

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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.