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Finding the Fourth Proportional to 50,799.69, 70,104.13 and 28,139.03

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Solution

The fourth proportional to 50,799.69, 70,104.13 and 28,139.03 is: 38,832.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,799.69 : 70,104.13 = 28,139.03 : x
  2. Step 2: Convert to fraction form
    50,799.69/70,104.13 = 28,139.03/x
  3. Step 3: Cross multiply
    50,799.69x = 70,104.13 × 28,139.03
  4. Step 4: Simplify right side
    50,799.69x = 1,972,662,217.50
  5. Step 5: Solve for x
    x = 1,972,662,217.50/50,799.69
  6. Step 6: Final answer
    x = 38,832.17

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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.