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Finding the Fourth Proportional to 60,698.72, 90,992 and 38,444.80

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Solution

The fourth proportional to 60,698.72, 90,992 and 38,444.80 is: 57,631.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,698.72 : 90,992 = 38,444.80 : x
  2. Step 2: Convert to fraction form
    60,698.72/90,992 = 38,444.80/x
  3. Step 3: Cross multiply
    60,698.72x = 90,992 × 38,444.80
  4. Step 4: Simplify right side
    60,698.72x = 3,498,169,241.60
  5. Step 5: Solve for x
    x = 3,498,169,241.60/60,698.72
  6. Step 6: Final answer
    x = 57,631.68

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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.