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Finding the Fourth Proportional to 43,339, 64,959.36 and 19,917.04

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Solution

The fourth proportional to 43,339, 64,959.36 and 19,917.04 is: 29,852.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,339 : 64,959.36 = 19,917.04 : x
  2. Step 2: Convert to fraction form
    43,339/64,959.36 = 19,917.04/x
  3. Step 3: Cross multiply
    43,339x = 64,959.36 × 19,917.04
  4. Step 4: Simplify right side
    43,339x = 1,293,798,171.49
  5. Step 5: Solve for x
    x = 1,293,798,171.49/43,339
  6. Step 6: Final answer
    x = 29,852.98

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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.