Home / 86,872.06-130,219.80-34,209.10

Finding the Fourth Proportional to 86,872.06, 130,219.80 and 34,209.10

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Solution

The fourth proportional to 86,872.06, 130,219.80 and 34,209.10 is: 51,278.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,872.06 : 130,219.80 = 34,209.10 : x
  2. Step 2: Convert to fraction form
    86,872.06/130,219.80 = 34,209.10/x
  3. Step 3: Cross multiply
    86,872.06x = 130,219.80 × 34,209.10
  4. Step 4: Simplify right side
    86,872.06x = 4,454,702,160.18
  5. Step 5: Solve for x
    x = 4,454,702,160.18/86,872.06
  6. Step 6: Final answer
    x = 51,278.88

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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.