Home / 81,831.80-112,925.58-49,585.50

Finding the Fourth Proportional to 81,831.80, 112,925.58 and 49,585.50

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Solution

The fourth proportional to 81,831.80, 112,925.58 and 49,585.50 is: 68,426.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,831.80 : 112,925.58 = 49,585.50 : x
  2. Step 2: Convert to fraction form
    81,831.80/112,925.58 = 49,585.50/x
  3. Step 3: Cross multiply
    81,831.80x = 112,925.58 × 49,585.50
  4. Step 4: Simplify right side
    81,831.80x = 5,599,471,161.14
  5. Step 5: Solve for x
    x = 5,599,471,161.14/81,831.80
  6. Step 6: Final answer
    x = 68,426.59

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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.