Home / 86,099.40-129,112.65-26,919.18

Finding the Fourth Proportional to 86,099.40, 129,112.65 and 26,919.18

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Solution

The fourth proportional to 86,099.40, 129,112.65 and 26,919.18 is: 40,367.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,099.40 : 129,112.65 = 26,919.18 : x
  2. Step 2: Convert to fraction form
    86,099.40/129,112.65 = 26,919.18/x
  3. Step 3: Cross multiply
    86,099.40x = 129,112.65 × 26,919.18
  4. Step 4: Simplify right side
    86,099.40x = 3,475,606,665.63
  5. Step 5: Solve for x
    x = 3,475,606,665.63/86,099.40
  6. Step 6: Final answer
    x = 40,367.37

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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.