Home / 81,717.95-112,764.71-45,913.92

Finding the Fourth Proportional to 81,717.95, 112,764.71 and 45,913.92

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Solution

The fourth proportional to 81,717.95, 112,764.71 and 45,913.92 is: 63,357.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,717.95 : 112,764.71 = 45,913.92 : x
  2. Step 2: Convert to fraction form
    81,717.95/112,764.71 = 45,913.92/x
  3. Step 3: Cross multiply
    81,717.95x = 112,764.71 × 45,913.92
  4. Step 4: Simplify right side
    81,717.95x = 5,177,469,644.19
  5. Step 5: Solve for x
    x = 5,177,469,644.19/81,717.95
  6. Step 6: Final answer
    x = 63,357.81

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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.