Home / 54,331.81-74,979.84-31,667.15

Finding the Fourth Proportional to 54,331.81, 74,979.84 and 31,667.15

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Solution

The fourth proportional to 54,331.81, 74,979.84 and 31,667.15 is: 43,701.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,331.81 : 74,979.84 = 31,667.15 : x
  2. Step 2: Convert to fraction form
    54,331.81/74,979.84 = 31,667.15/x
  3. Step 3: Cross multiply
    54,331.81x = 74,979.84 × 31,667.15
  4. Step 4: Simplify right side
    54,331.81x = 2,374,398,146.46
  5. Step 5: Solve for x
    x = 2,374,398,146.46/54,331.81
  6. Step 6: Final answer
    x = 43,701.81

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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.