Home / 54,215.10-81,322.65-35,612.70

Finding the Fourth Proportional to 54,215.10, 81,322.65 and 35,612.70

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Solution

The fourth proportional to 54,215.10, 81,322.65 and 35,612.70 is: 53,419.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,215.10 : 81,322.65 = 35,612.70 : x
  2. Step 2: Convert to fraction form
    54,215.10/81,322.65 = 35,612.70/x
  3. Step 3: Cross multiply
    54,215.10x = 81,322.65 × 35,612.70
  4. Step 4: Simplify right side
    54,215.10x = 2,896,119,137.66
  5. Step 5: Solve for x
    x = 2,896,119,137.66/54,215.10
  6. Step 6: Final answer
    x = 53,419.05

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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.