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Finding the Fourth Proportional to 75,161.32, 112,733.02 and 19,761.64

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Solution

The fourth proportional to 75,161.32, 112,733.02 and 19,761.64 is: 29,640.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,161.32 : 112,733.02 = 19,761.64 : x
  2. Step 2: Convert to fraction form
    75,161.32/112,733.02 = 19,761.64/x
  3. Step 3: Cross multiply
    75,161.32x = 112,733.02 × 19,761.64
  4. Step 4: Simplify right side
    75,161.32x = 2,227,789,357.35
  5. Step 5: Solve for x
    x = 2,227,789,357.35/75,161.32
  6. Step 6: Final answer
    x = 29,640.10

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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.