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Finding the Fourth Proportional to 71,626.63, 107,439.82 and 19,036.12

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Solution

The fourth proportional to 71,626.63, 107,439.82 and 19,036.12 is: 28,554.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,626.63 : 107,439.82 = 19,036.12 : x
  2. Step 2: Convert to fraction form
    71,626.63/107,439.82 = 19,036.12/x
  3. Step 3: Cross multiply
    71,626.63x = 107,439.82 × 19,036.12
  4. Step 4: Simplify right side
    71,626.63x = 2,045,237,306.30
  5. Step 5: Solve for x
    x = 2,045,237,306.30/71,626.63
  6. Step 6: Final answer
    x = 28,554.15

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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.