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Finding the Fourth Proportional to 68,362.50, 102,545.38 and 26,809.50

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Solution

The fourth proportional to 68,362.50, 102,545.38 and 26,809.50 is: 40,214.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,362.50 : 102,545.38 = 26,809.50 : x
  2. Step 2: Convert to fraction form
    68,362.50/102,545.38 = 26,809.50/x
  3. Step 3: Cross multiply
    68,362.50x = 102,545.38 × 26,809.50
  4. Step 4: Simplify right side
    68,362.50x = 2,749,190,365.11
  5. Step 5: Solve for x
    x = 2,749,190,365.11/68,362.50
  6. Step 6: Final answer
    x = 40,214.89

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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.