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Finding the Fourth Proportional to 50,550.71, 75,793.62 and 20,988.95

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Solution

The fourth proportional to 50,550.71, 75,793.62 and 20,988.95 is: 31,469.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,550.71 : 75,793.62 = 20,988.95 : x
  2. Step 2: Convert to fraction form
    50,550.71/75,793.62 = 20,988.95/x
  3. Step 3: Cross multiply
    50,550.71x = 75,793.62 × 20,988.95
  4. Step 4: Simplify right side
    50,550.71x = 1,590,828,069.06
  5. Step 5: Solve for x
    x = 1,590,828,069.06/50,550.71
  6. Step 6: Final answer
    x = 31,469.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.