Home / 88,313.16-121,869.45-50,076.21

Finding the Fourth Proportional to 88,313.16, 121,869.45 and 50,076.21

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Solution

The fourth proportional to 88,313.16, 121,869.45 and 50,076.21 is: 69,103.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,313.16 : 121,869.45 = 50,076.21 : x
  2. Step 2: Convert to fraction form
    88,313.16/121,869.45 = 50,076.21/x
  3. Step 3: Cross multiply
    88,313.16x = 121,869.45 × 50,076.21
  4. Step 4: Simplify right side
    88,313.16x = 6,102,760,170.78
  5. Step 5: Solve for x
    x = 6,102,760,170.78/88,313.16
  6. Step 6: Final answer
    x = 69,103.63

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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.