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Finding the Fourth Proportional to 52,613, 72,608.10 and 30,257

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Solution

The fourth proportional to 52,613, 72,608.10 and 30,257 is: 41,755.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,613 : 72,608.10 = 30,257 : x
  2. Step 2: Convert to fraction form
    52,613/72,608.10 = 30,257/x
  3. Step 3: Cross multiply
    52,613x = 72,608.10 × 30,257
  4. Step 4: Simplify right side
    52,613x = 2,196,903,281.70
  5. Step 5: Solve for x
    x = 2,196,903,281.70/52,613
  6. Step 6: Final answer
    x = 41,755.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.