Home / 50,121.40-69,174.90-28,896.52

Finding the Fourth Proportional to 50,121.40, 69,174.90 and 28,896.52

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Solution

The fourth proportional to 50,121.40, 69,174.90 and 28,896.52 is: 39,881.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,121.40 : 69,174.90 = 28,896.52 : x
  2. Step 2: Convert to fraction form
    50,121.40/69,174.90 = 28,896.52/x
  3. Step 3: Cross multiply
    50,121.40x = 69,174.90 × 28,896.52
  4. Step 4: Simplify right side
    50,121.40x = 1,998,913,881.35
  5. Step 5: Solve for x
    x = 1,998,913,881.35/50,121.40
  6. Step 6: Final answer
    x = 39,881.45

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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.