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Finding the Fourth Proportional to 64,414.05, 96,641.19 and 28,905.14

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Solution

The fourth proportional to 64,414.05, 96,641.19 and 28,905.14 is: 43,366.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,414.05 : 96,641.19 = 28,905.14 : x
  2. Step 2: Convert to fraction form
    64,414.05/96,641.19 = 28,905.14/x
  3. Step 3: Cross multiply
    64,414.05x = 96,641.19 × 28,905.14
  4. Step 4: Simplify right side
    64,414.05x = 2,793,426,643.51
  5. Step 5: Solve for x
    x = 2,793,426,643.51/64,414.05
  6. Step 6: Final answer
    x = 43,366.73

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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.