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Finding the Fourth Proportional to 50,701.80, 75,978.75 and 28,521.39

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Solution

The fourth proportional to 50,701.80, 75,978.75 and 28,521.39 is: 42,740.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,701.80 : 75,978.75 = 28,521.39 : x
  2. Step 2: Convert to fraction form
    50,701.80/75,978.75 = 28,521.39/x
  3. Step 3: Cross multiply
    50,701.80x = 75,978.75 × 28,521.39
  4. Step 4: Simplify right side
    50,701.80x = 2,167,019,560.46
  5. Step 5: Solve for x
    x = 2,167,019,560.46/50,701.80
  6. Step 6: Final answer
    x = 42,740.49

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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.