Home / 86,579.33-129,872.70-34,000.19

Finding the Fourth Proportional to 86,579.33, 129,872.70 and 34,000.19

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Solution

The fourth proportional to 86,579.33, 129,872.70 and 34,000.19 is: 51,001.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,579.33 : 129,872.70 = 34,000.19 : x
  2. Step 2: Convert to fraction form
    86,579.33/129,872.70 = 34,000.19/x
  3. Step 3: Cross multiply
    86,579.33x = 129,872.70 × 34,000.19
  4. Step 4: Simplify right side
    86,579.33x = 4,415,696,475.81
  5. Step 5: Solve for x
    x = 4,415,696,475.81/86,579.33
  6. Step 6: Final answer
    x = 51,001.74

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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.