Home / 86,920.76-130,425.63-41,380.00

Finding the Fourth Proportional to 86,920.76, 130,425.63 and 41,380.00

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Solution

The fourth proportional to 86,920.76, 130,425.63 and 41,380.00 is: 62,091.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,920.76 : 130,425.63 = 41,380.00 : x
  2. Step 2: Convert to fraction form
    86,920.76/130,425.63 = 41,380.00/x
  3. Step 3: Cross multiply
    86,920.76x = 130,425.63 × 41,380.00
  4. Step 4: Simplify right side
    86,920.76x = 5,397,012,320.92
  5. Step 5: Solve for x
    x = 5,397,012,320.92/86,920.76
  6. Step 6: Final answer
    x = 62,091.18

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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.