Home / 68,960.04-103,440.54-31,512.36

Finding the Fourth Proportional to 68,960.04, 103,440.54 and 31,512.36

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Solution

The fourth proportional to 68,960.04, 103,440.54 and 31,512.36 is: 47,268.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,960.04 : 103,440.54 = 31,512.36 : x
  2. Step 2: Convert to fraction form
    68,960.04/103,440.54 = 31,512.36/x
  3. Step 3: Cross multiply
    68,960.04x = 103,440.54 × 31,512.36
  4. Step 4: Simplify right side
    68,960.04x = 3,259,655,535.07
  5. Step 5: Solve for x
    x = 3,259,655,535.07/68,960.04
  6. Step 6: Final answer
    x = 47,268.76

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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.