Home / 86,694.30-130,115.28-34,140.69

Finding the Fourth Proportional to 86,694.30, 130,115.28 and 34,140.69

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Solution

The fourth proportional to 86,694.30, 130,115.28 and 34,140.69 is: 51,240.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,694.30 : 130,115.28 = 34,140.69 : x
  2. Step 2: Convert to fraction form
    86,694.30/130,115.28 = 34,140.69/x
  3. Step 3: Cross multiply
    86,694.30x = 130,115.28 × 34,140.69
  4. Step 4: Simplify right side
    86,694.30x = 4,442,225,438.74
  5. Step 5: Solve for x
    x = 4,442,225,438.74/86,694.30
  6. Step 6: Final answer
    x = 51,240.11

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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.