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Finding the Fourth Proportional to 71,603.76, 107,397.23 and 19,017.30

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Solution

The fourth proportional to 71,603.76, 107,397.23 and 19,017.30 is: 28,523.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,603.76 : 107,397.23 = 19,017.30 : x
  2. Step 2: Convert to fraction form
    71,603.76/107,397.23 = 19,017.30/x
  3. Step 3: Cross multiply
    71,603.76x = 107,397.23 × 19,017.30
  4. Step 4: Simplify right side
    71,603.76x = 2,042,405,246.99
  5. Step 5: Solve for x
    x = 2,042,405,246.99/71,603.76
  6. Step 6: Final answer
    x = 28,523.72

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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.