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Finding the Fourth Proportional to 70,550.49, 105,799.05 and 28,416.27

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Solution

The fourth proportional to 70,550.49, 105,799.05 and 28,416.27 is: 42,613.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,550.49 : 105,799.05 = 28,416.27 : x
  2. Step 2: Convert to fraction form
    70,550.49/105,799.05 = 28,416.27/x
  3. Step 3: Cross multiply
    70,550.49x = 105,799.05 × 28,416.27
  4. Step 4: Simplify right side
    70,550.49x = 3,006,414,370.54
  5. Step 5: Solve for x
    x = 3,006,414,370.54/70,550.49
  6. Step 6: Final answer
    x = 42,613.66

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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.