Home / 88,073.76-121,512.16-50,321.28

Finding the Fourth Proportional to 88,073.76, 121,512.16 and 50,321.28

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Solution

The fourth proportional to 88,073.76, 121,512.16 and 50,321.28 is: 69,426.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,073.76 : 121,512.16 = 50,321.28 : x
  2. Step 2: Convert to fraction form
    88,073.76/121,512.16 = 50,321.28/x
  3. Step 3: Cross multiply
    88,073.76x = 121,512.16 × 50,321.28
  4. Step 4: Simplify right side
    88,073.76x = 6,114,647,426.76
  5. Step 5: Solve for x
    x = 6,114,647,426.76/88,073.76
  6. Step 6: Final answer
    x = 69,426.44

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1.5x scale

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.