Home / 86,272.32-129,417.84-27,109.92

Finding the Fourth Proportional to 86,272.32, 129,417.84 and 27,109.92

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Solution

The fourth proportional to 86,272.32, 129,417.84 and 27,109.92 is: 40,667.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,272.32 : 129,417.84 = 27,109.92 : x
  2. Step 2: Convert to fraction form
    86,272.32/129,417.84 = 27,109.92/x
  3. Step 3: Cross multiply
    86,272.32x = 129,417.84 × 27,109.92
  4. Step 4: Simplify right side
    86,272.32x = 3,508,507,288.97
  5. Step 5: Solve for x
    x = 3,508,507,288.97/86,272.32
  6. Step 6: Final answer
    x = 40,667.82

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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.