Home / 54,497.36-81,712.59-21,178.52

Finding the Fourth Proportional to 54,497.36, 81,712.59 and 21,178.52

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Solution

The fourth proportional to 54,497.36, 81,712.59 and 21,178.52 is: 31,754.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,497.36 : 81,712.59 = 21,178.52 : x
  2. Step 2: Convert to fraction form
    54,497.36/81,712.59 = 21,178.52/x
  3. Step 3: Cross multiply
    54,497.36x = 81,712.59 × 21,178.52
  4. Step 4: Simplify right side
    54,497.36x = 1,730,551,925.85
  5. Step 5: Solve for x
    x = 1,730,551,925.85/54,497.36
  6. Step 6: Final answer
    x = 31,754.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.