Home / 92,921.82-128,231.40-50,480.66

Finding the Fourth Proportional to 92,921.82, 128,231.40 and 50,480.66

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Solution

The fourth proportional to 92,921.82, 128,231.40 and 50,480.66 is: 69,662.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,921.82 : 128,231.40 = 50,480.66 : x
  2. Step 2: Convert to fraction form
    92,921.82/128,231.40 = 50,480.66/x
  3. Step 3: Cross multiply
    92,921.82x = 128,231.40 × 50,480.66
  4. Step 4: Simplify right side
    92,921.82x = 6,473,205,704.72
  5. Step 5: Solve for x
    x = 6,473,205,704.72/92,921.82
  6. Step 6: Final answer
    x = 69,662.92

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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.