Home / 86,716.17-130,086.65-26,749.71

Finding the Fourth Proportional to 86,716.17, 130,086.65 and 26,749.71

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Solution

The fourth proportional to 86,716.17, 130,086.65 and 26,749.71 is: 40,128.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,716.17 : 130,086.65 = 26,749.71 : x
  2. Step 2: Convert to fraction form
    86,716.17/130,086.65 = 26,749.71/x
  3. Step 3: Cross multiply
    86,716.17x = 130,086.65 × 26,749.71
  4. Step 4: Simplify right side
    86,716.17x = 3,479,780,162.37
  5. Step 5: Solve for x
    x = 3,479,780,162.37/86,716.17
  6. Step 6: Final answer
    x = 40,128.39

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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.