Home / 77,812.74-116,608.68-59,976

Finding the Fourth Proportional to 77,812.74, 116,608.68 and 59,976

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Solution

The fourth proportional to 77,812.74, 116,608.68 and 59,976 is: 89,878.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,812.74 : 116,608.68 = 59,976 : x
  2. Step 2: Convert to fraction form
    77,812.74/116,608.68 = 59,976/x
  3. Step 3: Cross multiply
    77,812.74x = 116,608.68 × 59,976
  4. Step 4: Simplify right side
    77,812.74x = 6,993,722,191.68
  5. Step 5: Solve for x
    x = 6,993,722,191.68/77,812.74
  6. Step 6: Final answer
    x = 89,878.88

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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.