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Finding the Fourth Proportional to 64,349.92, 96,489.79 and 19,364.70

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Solution

The fourth proportional to 64,349.92, 96,489.79 and 19,364.70 is: 29,036.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,349.92 : 96,489.79 = 19,364.70 : x
  2. Step 2: Convert to fraction form
    64,349.92/96,489.79 = 19,364.70/x
  3. Step 3: Cross multiply
    64,349.92x = 96,489.79 × 19,364.70
  4. Step 4: Simplify right side
    64,349.92x = 1,868,495,836.41
  5. Step 5: Solve for x
    x = 1,868,495,836.41/64,349.92
  6. Step 6: Final answer
    x = 29,036.49

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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.