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Finding the Fourth Proportional to 54,355.95, 81,542.03 and 19,292.67

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Solution

The fourth proportional to 54,355.95, 81,542.03 and 19,292.67 is: 28,941.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,355.95 : 81,542.03 = 19,292.67 : x
  2. Step 2: Convert to fraction form
    54,355.95/81,542.03 = 19,292.67/x
  3. Step 3: Cross multiply
    54,355.95x = 81,542.03 × 19,292.67
  4. Step 4: Simplify right side
    54,355.95x = 1,573,163,379.46
  5. Step 5: Solve for x
    x = 1,573,163,379.46/54,355.95
  6. Step 6: Final answer
    x = 28,941.88

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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.