Home / 88,003.16-121,433.28-50,279.84

Finding the Fourth Proportional to 88,003.16, 121,433.28 and 50,279.84

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Solution

The fourth proportional to 88,003.16, 121,433.28 and 50,279.84 is: 69,379.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,003.16 : 121,433.28 = 50,279.84 : x
  2. Step 2: Convert to fraction form
    88,003.16/121,433.28 = 50,279.84/x
  3. Step 3: Cross multiply
    88,003.16x = 121,433.28 × 50,279.84
  4. Step 4: Simplify right side
    88,003.16x = 6,105,645,889.08
  5. Step 5: Solve for x
    x = 6,105,645,889.08/88,003.16
  6. Step 6: Final answer
    x = 69,379.85

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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.