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Finding the Fourth Proportional to 54,363.52, 81,566.04 and 21,106.94

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Solution

The fourth proportional to 54,363.52, 81,566.04 and 21,106.94 is: 31,668.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,363.52 : 81,566.04 = 21,106.94 : x
  2. Step 2: Convert to fraction form
    54,363.52/81,566.04 = 21,106.94/x
  3. Step 3: Cross multiply
    54,363.52x = 81,566.04 × 21,106.94
  4. Step 4: Simplify right side
    54,363.52x = 1,721,609,771.99
  5. Step 5: Solve for x
    x = 1,721,609,771.99/54,363.52
  6. Step 6: Final answer
    x = 31,668.47

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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.