Home / 73,017.28-109,587.36-68,409.28

Finding the Fourth Proportional to 73,017.28, 109,587.36 and 68,409.28

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Solution

The fourth proportional to 73,017.28, 109,587.36 and 68,409.28 is: 102,671.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,017.28 : 109,587.36 = 68,409.28 : x
  2. Step 2: Convert to fraction form
    73,017.28/109,587.36 = 68,409.28/x
  3. Step 3: Cross multiply
    73,017.28x = 109,587.36 × 68,409.28
  4. Step 4: Simplify right side
    73,017.28x = 7,496,792,394.70
  5. Step 5: Solve for x
    x = 7,496,792,394.70/73,017.28
  6. Step 6: Final answer
    x = 102,671.48

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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.