Home / 83,831.92-115,629.49-56,927.72

Finding the Fourth Proportional to 83,831.92, 115,629.49 and 56,927.72

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Solution

The fourth proportional to 83,831.92, 115,629.49 and 56,927.72 is: 78,520.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,831.92 : 115,629.49 = 56,927.72 : x
  2. Step 2: Convert to fraction form
    83,831.92/115,629.49 = 56,927.72/x
  3. Step 3: Cross multiply
    83,831.92x = 115,629.49 × 56,927.72
  4. Step 4: Simplify right side
    83,831.92x = 6,582,522,367.68
  5. Step 5: Solve for x
    x = 6,582,522,367.68/83,831.92
  6. Step 6: Final answer
    x = 78,520.48

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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.