Home / 54,715.46-81,991.08-42,216.74

Finding the Fourth Proportional to 54,715.46, 81,991.08 and 42,216.74

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Solution

The fourth proportional to 54,715.46, 81,991.08 and 42,216.74 is: 63,261.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,715.46 : 81,991.08 = 42,216.74 : x
  2. Step 2: Convert to fraction form
    54,715.46/81,991.08 = 42,216.74/x
  3. Step 3: Cross multiply
    54,715.46x = 81,991.08 × 42,216.74
  4. Step 4: Simplify right side
    54,715.46x = 3,461,396,106.68
  5. Step 5: Solve for x
    x = 3,461,396,106.68/54,715.46
  6. Step 6: Final answer
    x = 63,261.76

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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.