Home / 81,437.93-112,439.27-50,857.73

Finding the Fourth Proportional to 81,437.93, 112,439.27 and 50,857.73

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Solution

The fourth proportional to 81,437.93, 112,439.27 and 50,857.73 is: 70,217.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,437.93 : 112,439.27 = 50,857.73 : x
  2. Step 2: Convert to fraction form
    81,437.93/112,439.27 = 50,857.73/x
  3. Step 3: Cross multiply
    81,437.93x = 112,439.27 × 50,857.73
  4. Step 4: Simplify right side
    81,437.93x = 5,718,406,035.06
  5. Step 5: Solve for x
    x = 5,718,406,035.06/81,437.93
  6. Step 6: Final answer
    x = 70,217.97

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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.