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Finding the Fourth Proportional to 71,944.25, 107,916.30 and 19,353.74

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Solution

The fourth proportional to 71,944.25, 107,916.30 and 19,353.74 is: 29,030.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,944.25 : 107,916.30 = 19,353.74 : x
  2. Step 2: Convert to fraction form
    71,944.25/107,916.30 = 19,353.74/x
  3. Step 3: Cross multiply
    71,944.25x = 107,916.30 × 19,353.74
  4. Step 4: Simplify right side
    71,944.25x = 2,088,583,472.38
  5. Step 5: Solve for x
    x = 2,088,583,472.38/71,944.25
  6. Step 6: Final answer
    x = 29,030.58

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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.