Home / 78,838.08-108,796.85-43,028.88

Finding the Fourth Proportional to 78,838.08, 108,796.85 and 43,028.88

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Solution

The fourth proportional to 78,838.08, 108,796.85 and 43,028.88 is: 59,380.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,838.08 : 108,796.85 = 43,028.88 : x
  2. Step 2: Convert to fraction form
    78,838.08/108,796.85 = 43,028.88/x
  3. Step 3: Cross multiply
    78,838.08x = 108,796.85 × 43,028.88
  4. Step 4: Simplify right side
    78,838.08x = 4,681,406,603.03
  5. Step 5: Solve for x
    x = 4,681,406,603.03/78,838.08
  6. Step 6: Final answer
    x = 59,380.02

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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.