Home / 54,979.93-75,871.78-31,106.61

Finding the Fourth Proportional to 54,979.93, 75,871.78 and 31,106.61

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Solution

The fourth proportional to 54,979.93, 75,871.78 and 31,106.61 is: 42,926.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,979.93 : 75,871.78 = 31,106.61 : x
  2. Step 2: Convert to fraction form
    54,979.93/75,871.78 = 31,106.61/x
  3. Step 3: Cross multiply
    54,979.93x = 75,871.78 × 31,106.61
  4. Step 4: Simplify right side
    54,979.93x = 2,360,113,870.47
  5. Step 5: Solve for x
    x = 2,360,113,870.47/54,979.93
  6. Step 6: Final answer
    x = 42,926.83

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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.