Home / 78,069.10-117,105.89-24,761.32

Finding the Fourth Proportional to 78,069.10, 117,105.89 and 24,761.32

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Solution

The fourth proportional to 78,069.10, 117,105.89 and 24,761.32 is: 37,142.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,069.10 : 117,105.89 = 24,761.32 : x
  2. Step 2: Convert to fraction form
    78,069.10/117,105.89 = 24,761.32/x
  3. Step 3: Cross multiply
    78,069.10x = 117,105.89 × 24,761.32
  4. Step 4: Simplify right side
    78,069.10x = 2,899,696,416.17
  5. Step 5: Solve for x
    x = 2,899,696,416.17/78,069.10
  6. Step 6: Final answer
    x = 37,142.69

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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.