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Finding the Fourth Proportional to 79,780.52, 119,238.22 and 73,475.48

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Solution

The fourth proportional to 79,780.52, 119,238.22 and 73,475.48 is: 109,814.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,780.52 : 119,238.22 = 73,475.48 : x
  2. Step 2: Convert to fraction form
    79,780.52/119,238.22 = 73,475.48/x
  3. Step 3: Cross multiply
    79,780.52x = 119,238.22 × 73,475.48
  4. Step 4: Simplify right side
    79,780.52x = 8,761,085,448.85
  5. Step 5: Solve for x
    x = 8,761,085,448.85/79,780.52
  6. Step 6: Final answer
    x = 109,814.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.