Home / 50,502.28-69,691.80-28,991.40

Finding the Fourth Proportional to 50,502.28, 69,691.80 and 28,991.40

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Solution

The fourth proportional to 50,502.28, 69,691.80 and 28,991.40 is: 40,007.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,502.28 : 69,691.80 = 28,991.40 : x
  2. Step 2: Convert to fraction form
    50,502.28/69,691.80 = 28,991.40/x
  3. Step 3: Cross multiply
    50,502.28x = 69,691.80 × 28,991.40
  4. Step 4: Simplify right side
    50,502.28x = 2,020,462,850.52
  5. Step 5: Solve for x
    x = 2,020,462,850.52/50,502.28
  6. Step 6: Final answer
    x = 40,007.36

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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.