Home / 54,117.15-74,681.41-30,243.81

Finding the Fourth Proportional to 54,117.15, 74,681.41 and 30,243.81

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Solution

The fourth proportional to 54,117.15, 74,681.41 and 30,243.81 is: 41,736.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,117.15 : 74,681.41 = 30,243.81 : x
  2. Step 2: Convert to fraction form
    54,117.15/74,681.41 = 30,243.81/x
  3. Step 3: Cross multiply
    54,117.15x = 74,681.41 × 30,243.81
  4. Step 4: Simplify right side
    54,117.15x = 2,258,650,374.57
  5. Step 5: Solve for x
    x = 2,258,650,374.57/54,117.15
  6. Step 6: Final answer
    x = 41,736.31

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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.