Home / 78,839.04-108,797.12-43,029.28

Finding the Fourth Proportional to 78,839.04, 108,797.12 and 43,029.28

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Solution

The fourth proportional to 78,839.04, 108,797.12 and 43,029.28 is: 59,379.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,839.04 : 108,797.12 = 43,029.28 : x
  2. Step 2: Convert to fraction form
    78,839.04/108,797.12 = 43,029.28/x
  3. Step 3: Cross multiply
    78,839.04x = 108,797.12 × 43,029.28
  4. Step 4: Simplify right side
    78,839.04x = 4,681,461,739.67
  5. Step 5: Solve for x
    x = 4,681,461,739.67/78,839.04
  6. Step 6: Final answer
    x = 59,379.99

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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.