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Finding the Fourth Proportional to 64,603.33, 96,778.63 and 42,348.79

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Solution

The fourth proportional to 64,603.33, 96,778.63 and 42,348.79 is: 63,440.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,603.33 : 96,778.63 = 42,348.79 : x
  2. Step 2: Convert to fraction form
    64,603.33/96,778.63 = 42,348.79/x
  3. Step 3: Cross multiply
    64,603.33x = 96,778.63 × 42,348.79
  4. Step 4: Simplify right side
    64,603.33x = 4,098,457,878.36
  5. Step 5: Solve for x
    x = 4,098,457,878.36/64,603.33
  6. Step 6: Final answer
    x = 63,440.35

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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.