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Finding the Fourth Proportional to 79,835.88, 119,688.88 and 29,888

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Solution

The fourth proportional to 79,835.88, 119,688.88 and 29,888 is: 44,807.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,835.88 : 119,688.88 = 29,888 : x
  2. Step 2: Convert to fraction form
    79,835.88/119,688.88 = 29,888/x
  3. Step 3: Cross multiply
    79,835.88x = 119,688.88 × 29,888
  4. Step 4: Simplify right side
    79,835.88x = 3,577,261,245.44
  5. Step 5: Solve for x
    x = 3,577,261,245.44/79,835.88
  6. Step 6: Final answer
    x = 44,807.69

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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.