Home / 86,656.48-129,989.33-27,496.78

Finding the Fourth Proportional to 86,656.48, 129,989.33 and 27,496.78

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Solution

The fourth proportional to 86,656.48, 129,989.33 and 27,496.78 is: 41,246.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,656.48 : 129,989.33 = 27,496.78 : x
  2. Step 2: Convert to fraction form
    86,656.48/129,989.33 = 27,496.78/x
  3. Step 3: Cross multiply
    86,656.48x = 129,989.33 × 27,496.78
  4. Step 4: Simplify right side
    86,656.48x = 3,574,288,009.36
  5. Step 5: Solve for x
    x = 3,574,288,009.36/86,656.48
  6. Step 6: Final answer
    x = 41,246.63

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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.