Home / 86,734.91-130,013.73-49,215.72

Finding the Fourth Proportional to 86,734.91, 130,013.73 and 49,215.72

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Solution

The fourth proportional to 86,734.91, 130,013.73 and 49,215.72 is: 73,773.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,734.91 : 130,013.73 = 49,215.72 : x
  2. Step 2: Convert to fraction form
    86,734.91/130,013.73 = 49,215.72/x
  3. Step 3: Cross multiply
    86,734.91x = 130,013.73 × 49,215.72
  4. Step 4: Simplify right side
    86,734.91x = 6,398,719,331.84
  5. Step 5: Solve for x
    x = 6,398,719,331.84/86,734.91
  6. Step 6: Final answer
    x = 73,773.29

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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.