Home / 53,963.31-80,951.75-18,431.35

Finding the Fourth Proportional to 53,963.31, 80,951.75 and 18,431.35

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Solution

The fourth proportional to 53,963.31, 80,951.75 and 18,431.35 is: 27,649.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,963.31 : 80,951.75 = 18,431.35 : x
  2. Step 2: Convert to fraction form
    53,963.31/80,951.75 = 18,431.35/x
  3. Step 3: Cross multiply
    53,963.31x = 80,951.75 × 18,431.35
  4. Step 4: Simplify right side
    53,963.31x = 1,492,050,037.36
  5. Step 5: Solve for x
    x = 1,492,050,037.36/53,963.31
  6. Step 6: Final answer
    x = 27,649.34

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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.