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Finding the Fourth Proportional to 92,363.08, 138,559.20 and 30,019

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Solution

The fourth proportional to 92,363.08, 138,559.20 and 30,019 is: 45,033.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,363.08 : 138,559.20 = 30,019 : x
  2. Step 2: Convert to fraction form
    92,363.08/138,559.20 = 30,019/x
  3. Step 3: Cross multiply
    92,363.08x = 138,559.20 × 30,019
  4. Step 4: Simplify right side
    92,363.08x = 4,159,408,624.80
  5. Step 5: Solve for x
    x = 4,159,408,624.80/92,363.08
  6. Step 6: Final answer
    x = 45,033.24

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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.