Home / 78,821.04-108,773.31-43,011.84

Finding the Fourth Proportional to 78,821.04, 108,773.31 and 43,011.84

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Solution

The fourth proportional to 78,821.04, 108,773.31 and 43,011.84 is: 59,356.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,821.04 : 108,773.31 = 43,011.84 : x
  2. Step 2: Convert to fraction form
    78,821.04/108,773.31 = 43,011.84/x
  3. Step 3: Cross multiply
    78,821.04x = 108,773.31 × 43,011.84
  4. Step 4: Simplify right side
    78,821.04x = 4,678,540,205.99
  5. Step 5: Solve for x
    x = 4,678,540,205.99/78,821.04
  6. Step 6: Final answer
    x = 59,356.49

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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.