Home / 88,433.21-121,805.37-67,976.15

Finding the Fourth Proportional to 88,433.21, 121,805.37 and 67,976.15

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Solution

The fourth proportional to 88,433.21, 121,805.37 and 67,976.15 is: 93,628.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,433.21 : 121,805.37 = 67,976.15 : x
  2. Step 2: Convert to fraction form
    88,433.21/121,805.37 = 67,976.15/x
  3. Step 3: Cross multiply
    88,433.21x = 121,805.37 × 67,976.15
  4. Step 4: Simplify right side
    88,433.21x = 8,279,859,492.90
  5. Step 5: Solve for x
    x = 8,279,859,492.90/88,433.21
  6. Step 6: Final answer
    x = 93,628.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.