Home / 53,434.18-80,121.66-21,866.40

Finding the Fourth Proportional to 53,434.18, 80,121.66 and 21,866.40

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Solution

The fourth proportional to 53,434.18, 80,121.66 and 21,866.40 is: 32,787.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,434.18 : 80,121.66 = 21,866.40 : x
  2. Step 2: Convert to fraction form
    53,434.18/80,121.66 = 21,866.40/x
  3. Step 3: Cross multiply
    53,434.18x = 80,121.66 × 21,866.40
  4. Step 4: Simplify right side
    53,434.18x = 1,751,972,266.22
  5. Step 5: Solve for x
    x = 1,751,972,266.22/53,434.18
  6. Step 6: Final answer
    x = 32,787.48

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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.