Home / 81,836.76-112,940.64-50,011.74

Finding the Fourth Proportional to 81,836.76, 112,940.64 and 50,011.74

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Solution

The fourth proportional to 81,836.76, 112,940.64 and 50,011.74 is: 69,019.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,836.76 : 112,940.64 = 50,011.74 : x
  2. Step 2: Convert to fraction form
    81,836.76/112,940.64 = 50,011.74/x
  3. Step 3: Cross multiply
    81,836.76x = 112,940.64 × 50,011.74
  4. Step 4: Simplify right side
    81,836.76x = 5,648,357,923.11
  5. Step 5: Solve for x
    x = 5,648,357,923.11/81,836.76
  6. Step 6: Final answer
    x = 69,019.81

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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.