Home / 78,429.20-117,577.64-34,022.48

Finding the Fourth Proportional to 78,429.20, 117,577.64 and 34,022.48

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Solution

The fourth proportional to 78,429.20, 117,577.64 and 34,022.48 is: 51,005.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,429.20 : 117,577.64 = 34,022.48 : x
  2. Step 2: Convert to fraction form
    78,429.20/117,577.64 = 34,022.48/x
  3. Step 3: Cross multiply
    78,429.20x = 117,577.64 × 34,022.48
  4. Step 4: Simplify right side
    78,429.20x = 4,000,282,905.35
  5. Step 5: Solve for x
    x = 4,000,282,905.35/78,429.20
  6. Step 6: Final answer
    x = 51,005.02

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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.