Home / 79,137.52-118,706.04-19,977.92

Finding the Fourth Proportional to 79,137.52, 118,706.04 and 19,977.92

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Solution

The fourth proportional to 79,137.52, 118,706.04 and 19,977.92 is: 29,966.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,137.52 : 118,706.04 = 19,977.92 : x
  2. Step 2: Convert to fraction form
    79,137.52/118,706.04 = 19,977.92/x
  3. Step 3: Cross multiply
    79,137.52x = 118,706.04 × 19,977.92
  4. Step 4: Simplify right side
    79,137.52x = 2,371,499,770.64
  5. Step 5: Solve for x
    x = 2,371,499,770.64/79,137.52
  6. Step 6: Final answer
    x = 29,966.82

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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.