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Finding the Fourth Proportional to 45,501.40, 68,227.80 and 19,176.40

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Solution

The fourth proportional to 45,501.40, 68,227.80 and 19,176.40 is: 28,754.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,501.40 : 68,227.80 = 19,176.40 : x
  2. Step 2: Convert to fraction form
    45,501.40/68,227.80 = 19,176.40/x
  3. Step 3: Cross multiply
    45,501.40x = 68,227.80 × 19,176.40
  4. Step 4: Simplify right side
    45,501.40x = 1,308,363,583.92
  5. Step 5: Solve for x
    x = 1,308,363,583.92/45,501.40
  6. Step 6: Final answer
    x = 28,754.36

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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.