Home / 54,558.72-81,838.08-47,140.74

Finding the Fourth Proportional to 54,558.72, 81,838.08 and 47,140.74

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Solution

The fourth proportional to 54,558.72, 81,838.08 and 47,140.74 is: 70,711.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,558.72 : 81,838.08 = 47,140.74 : x
  2. Step 2: Convert to fraction form
    54,558.72/81,838.08 = 47,140.74/x
  3. Step 3: Cross multiply
    54,558.72x = 81,838.08 × 47,140.74
  4. Step 4: Simplify right side
    54,558.72x = 3,857,907,651.38
  5. Step 5: Solve for x
    x = 3,857,907,651.38/54,558.72
  6. Step 6: Final answer
    x = 70,711.11

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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.