Home / 88,403.64-121,976.16-50,154.72

Finding the Fourth Proportional to 88,403.64, 121,976.16 and 50,154.72

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Solution

The fourth proportional to 88,403.64, 121,976.16 and 50,154.72 is: 69,201.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,403.64 : 121,976.16 = 50,154.72 : x
  2. Step 2: Convert to fraction form
    88,403.64/121,976.16 = 50,154.72/x
  3. Step 3: Cross multiply
    88,403.64x = 121,976.16 × 50,154.72
  4. Step 4: Simplify right side
    88,403.64x = 6,117,680,151.48
  5. Step 5: Solve for x
    x = 6,117,680,151.48/88,403.64
  6. Step 6: Final answer
    x = 69,201.68

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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.