Home / 54,591.15-81,838.01-21,303.47

Finding the Fourth Proportional to 54,591.15, 81,838.01 and 21,303.47

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Solution

The fourth proportional to 54,591.15, 81,838.01 and 21,303.47 is: 31,936.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,591.15 : 81,838.01 = 21,303.47 : x
  2. Step 2: Convert to fraction form
    54,591.15/81,838.01 = 21,303.47/x
  3. Step 3: Cross multiply
    54,591.15x = 81,838.01 × 21,303.47
  4. Step 4: Simplify right side
    54,591.15x = 1,743,433,848.75
  5. Step 5: Solve for x
    x = 1,743,433,848.75/54,591.15
  6. Step 6: Final answer
    x = 31,936.20

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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.