Home / 78,505.34-117,761.85-22,349.39

Finding the Fourth Proportional to 78,505.34, 117,761.85 and 22,349.39

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Solution

The fourth proportional to 78,505.34, 117,761.85 and 22,349.39 is: 33,525.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,505.34 : 117,761.85 = 22,349.39 : x
  2. Step 2: Convert to fraction form
    78,505.34/117,761.85 = 22,349.39/x
  3. Step 3: Cross multiply
    78,505.34x = 117,761.85 × 22,349.39
  4. Step 4: Simplify right side
    78,505.34x = 2,631,904,923.96
  5. Step 5: Solve for x
    x = 2,631,904,923.96/78,505.34
  6. Step 6: Final answer
    x = 33,525.17

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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.