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Finding the Fourth Proportional to 54,352.95, 81,537.53 and 19,289.67

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Solution

The fourth proportional to 54,352.95, 81,537.53 and 19,289.67 is: 28,937.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,352.95 : 81,537.53 = 19,289.67 : x
  2. Step 2: Convert to fraction form
    54,352.95/81,537.53 = 19,289.67/x
  3. Step 3: Cross multiply
    54,352.95x = 81,537.53 × 19,289.67
  4. Step 4: Simplify right side
    54,352.95x = 1,572,831,949.87
  5. Step 5: Solve for x
    x = 1,572,831,949.87/54,352.95
  6. Step 6: Final answer
    x = 28,937.38

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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.