Home / 92,919.28-128,228.80-50,476.88

Finding the Fourth Proportional to 92,919.28, 128,228.80 and 50,476.88

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Solution

The fourth proportional to 92,919.28, 128,228.80 and 50,476.88 is: 69,658.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,919.28 : 128,228.80 = 50,476.88 : x
  2. Step 2: Convert to fraction form
    92,919.28/128,228.80 = 50,476.88/x
  3. Step 3: Cross multiply
    92,919.28x = 128,228.80 × 50,476.88
  4. Step 4: Simplify right side
    92,919.28x = 6,472,589,750.14
  5. Step 5: Solve for x
    x = 6,472,589,750.14/92,919.28
  6. Step 6: Final answer
    x = 69,658.20

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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.