Home / 78,407.04-117,843.82-36,883.20

Finding the Fourth Proportional to 78,407.04, 117,843.82 and 36,883.20

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Solution

The fourth proportional to 78,407.04, 117,843.82 and 36,883.20 is: 55,434.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,407.04 : 117,843.82 = 36,883.20 : x
  2. Step 2: Convert to fraction form
    78,407.04/117,843.82 = 36,883.20/x
  3. Step 3: Cross multiply
    78,407.04x = 117,843.82 × 36,883.20
  4. Step 4: Simplify right side
    78,407.04x = 4,346,457,181.82
  5. Step 5: Solve for x
    x = 4,346,457,181.82/78,407.04
  6. Step 6: Final answer
    x = 55,434.53

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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.