Home / 54,634.08-81,990-42,166.56

Finding the Fourth Proportional to 54,634.08, 81,990 and 42,166.56

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Solution

The fourth proportional to 54,634.08, 81,990 and 42,166.56 is: 63,279.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,634.08 : 81,990 = 42,166.56 : x
  2. Step 2: Convert to fraction form
    54,634.08/81,990 = 42,166.56/x
  3. Step 3: Cross multiply
    54,634.08x = 81,990 × 42,166.56
  4. Step 4: Simplify right side
    54,634.08x = 3,457,236,254.40
  5. Step 5: Solve for x
    x = 3,457,236,254.40/54,634.08
  6. Step 6: Final answer
    x = 63,279.85

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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.