Home / 86,894.25-130,052.07-65,717.61

Finding the Fourth Proportional to 86,894.25, 130,052.07 and 65,717.61

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Solution

The fourth proportional to 86,894.25, 130,052.07 and 65,717.61 is: 98,357.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,894.25 : 130,052.07 = 65,717.61 : x
  2. Step 2: Convert to fraction form
    86,894.25/130,052.07 = 65,717.61/x
  3. Step 3: Cross multiply
    86,894.25x = 130,052.07 × 65,717.61
  4. Step 4: Simplify right side
    86,894.25x = 8,546,711,215.95
  5. Step 5: Solve for x
    x = 8,546,711,215.95/86,894.25
  6. Step 6: Final answer
    x = 98,357.62

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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.