Home / 86,063.22-129,145.36-36,139.48

Finding the Fourth Proportional to 86,063.22, 129,145.36 and 36,139.48

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Solution

The fourth proportional to 86,063.22, 129,145.36 and 36,139.48 is: 54,230.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,063.22 : 129,145.36 = 36,139.48 : x
  2. Step 2: Convert to fraction form
    86,063.22/129,145.36 = 36,139.48/x
  3. Step 3: Cross multiply
    86,063.22x = 129,145.36 × 36,139.48
  4. Step 4: Simplify right side
    86,063.22x = 4,667,246,154.81
  5. Step 5: Solve for x
    x = 4,667,246,154.81/86,063.22
  6. Step 6: Final answer
    x = 54,230.44

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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.