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Finding the Fourth Proportional to 71,522.37, 107,278.79 and 29,391.54

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Solution

The fourth proportional to 71,522.37, 107,278.79 and 29,391.54 is: 44,085.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,522.37 : 107,278.79 = 29,391.54 : x
  2. Step 2: Convert to fraction form
    71,522.37/107,278.79 = 29,391.54/x
  3. Step 3: Cross multiply
    71,522.37x = 107,278.79 × 29,391.54
  4. Step 4: Simplify right side
    71,522.37x = 3,153,088,920.92
  5. Step 5: Solve for x
    x = 3,153,088,920.92/71,522.37
  6. Step 6: Final answer
    x = 44,085.35

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1.5x scale

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.