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Finding the Fourth Proportional to 88,898.81, 133,320.42 and 29,720.66

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Solution

The fourth proportional to 88,898.81, 133,320.42 and 29,720.66 is: 44,571.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,898.81 : 133,320.42 = 29,720.66 : x
  2. Step 2: Convert to fraction form
    88,898.81/133,320.42 = 29,720.66/x
  3. Step 3: Cross multiply
    88,898.81x = 133,320.42 × 29,720.66
  4. Step 4: Simplify right side
    88,898.81x = 3,962,370,207.28
  5. Step 5: Solve for x
    x = 3,962,370,207.28/88,898.81
  6. Step 6: Final answer
    x = 44,571.69

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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.