Home / 77,911.92-107,552.34-60,645.15

Finding the Fourth Proportional to 77,911.92, 107,552.34 and 60,645.15

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Solution

The fourth proportional to 77,911.92, 107,552.34 and 60,645.15 is: 83,716.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,911.92 : 107,552.34 = 60,645.15 : x
  2. Step 2: Convert to fraction form
    77,911.92/107,552.34 = 60,645.15/x
  3. Step 3: Cross multiply
    77,911.92x = 107,552.34 × 60,645.15
  4. Step 4: Simplify right side
    77,911.92x = 6,522,527,792.15
  5. Step 5: Solve for x
    x = 6,522,527,792.15/77,911.92
  6. Step 6: Final answer
    x = 83,716.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.