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Finding the Fourth Proportional to 79,970.94, 120,029.22 and 42,562.44

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Solution

The fourth proportional to 79,970.94, 120,029.22 and 42,562.44 is: 63,882.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,970.94 : 120,029.22 = 42,562.44 : x
  2. Step 2: Convert to fraction form
    79,970.94/120,029.22 = 42,562.44/x
  3. Step 3: Cross multiply
    79,970.94x = 120,029.22 × 42,562.44
  4. Step 4: Simplify right side
    79,970.94x = 5,108,736,474.50
  5. Step 5: Solve for x
    x = 5,108,736,474.50/79,970.94
  6. Step 6: Final answer
    x = 63,882.41

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.