Home / 54,657.51-75,427.79-30,781.95

Finding the Fourth Proportional to 54,657.51, 75,427.79 and 30,781.95

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Solution

The fourth proportional to 54,657.51, 75,427.79 and 30,781.95 is: 42,479.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,657.51 : 75,427.79 = 30,781.95 : x
  2. Step 2: Convert to fraction form
    54,657.51/75,427.79 = 30,781.95/x
  3. Step 3: Cross multiply
    54,657.51x = 75,427.79 × 30,781.95
  4. Step 4: Simplify right side
    54,657.51x = 2,321,814,306.48
  5. Step 5: Solve for x
    x = 2,321,814,306.48/54,657.51
  6. Step 6: Final answer
    x = 42,479.33

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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.