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Finding the Fourth Proportional to 71,364.52, 107,061.81 and 26,990.29

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Solution

The fourth proportional to 71,364.52, 107,061.81 and 26,990.29 is: 40,491.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,364.52 : 107,061.81 = 26,990.29 : x
  2. Step 2: Convert to fraction form
    71,364.52/107,061.81 = 26,990.29/x
  3. Step 3: Cross multiply
    71,364.52x = 107,061.81 × 26,990.29
  4. Step 4: Simplify right side
    71,364.52x = 2,889,629,299.82
  5. Step 5: Solve for x
    x = 2,889,629,299.82/71,364.52
  6. Step 6: Final answer
    x = 40,491.12

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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.