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Finding the Fourth Proportional to 79,321.46, 109,577.49 and 63,384.98

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Solution

The fourth proportional to 79,321.46, 109,577.49 and 63,384.98 is: 87,562.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,321.46 : 109,577.49 = 63,384.98 : x
  2. Step 2: Convert to fraction form
    79,321.46/109,577.49 = 63,384.98/x
  3. Step 3: Cross multiply
    79,321.46x = 109,577.49 × 63,384.98
  4. Step 4: Simplify right side
    79,321.46x = 6,945,567,012.10
  5. Step 5: Solve for x
    x = 6,945,567,012.10/79,321.46
  6. Step 6: Final answer
    x = 87,562.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.