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Finding the Fourth Proportional to 75,322.80, 112,984.85 and 19,162.97

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Solution

The fourth proportional to 75,322.80, 112,984.85 and 19,162.97 is: 28,744.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,322.80 : 112,984.85 = 19,162.97 : x
  2. Step 2: Convert to fraction form
    75,322.80/112,984.85 = 19,162.97/x
  3. Step 3: Cross multiply
    75,322.80x = 112,984.85 × 19,162.97
  4. Step 4: Simplify right side
    75,322.80x = 2,165,124,630.27
  5. Step 5: Solve for x
    x = 2,165,124,630.27/75,322.80
  6. Step 6: Final answer
    x = 28,744.61

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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.