Home / 86,708.78-130,073.58-30,537.27

Finding the Fourth Proportional to 86,708.78, 130,073.58 and 30,537.27

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Solution

The fourth proportional to 86,708.78, 130,073.58 and 30,537.27 is: 45,809.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,708.78 : 130,073.58 = 30,537.27 : x
  2. Step 2: Convert to fraction form
    86,708.78/130,073.58 = 30,537.27/x
  3. Step 3: Cross multiply
    86,708.78x = 130,073.58 × 30,537.27
  4. Step 4: Simplify right side
    86,708.78x = 3,972,092,032.33
  5. Step 5: Solve for x
    x = 3,972,092,032.33/86,708.78
  6. Step 6: Final answer
    x = 45,809.57

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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.