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Finding the Fourth Proportional to 54,347.52, 81,461.44 and 40,977.65

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Solution

The fourth proportional to 54,347.52, 81,461.44 and 40,977.65 is: 61,421.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,347.52 : 81,461.44 = 40,977.65 : x
  2. Step 2: Convert to fraction form
    54,347.52/81,461.44 = 40,977.65/x
  3. Step 3: Cross multiply
    54,347.52x = 81,461.44 × 40,977.65
  4. Step 4: Simplify right side
    54,347.52x = 3,338,098,376.82
  5. Step 5: Solve for x
    x = 3,338,098,376.82/54,347.52
  6. Step 6: Final answer
    x = 61,421.36

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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.