Home / 54,116.10-81,064.80-30,715.20

Finding the Fourth Proportional to 54,116.10, 81,064.80 and 30,715.20

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Solution

The fourth proportional to 54,116.10, 81,064.80 and 30,715.20 is: 46,010.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,116.10 : 81,064.80 = 30,715.20 : x
  2. Step 2: Convert to fraction form
    54,116.10/81,064.80 = 30,715.20/x
  3. Step 3: Cross multiply
    54,116.10x = 81,064.80 × 30,715.20
  4. Step 4: Simplify right side
    54,116.10x = 2,489,921,544.96
  5. Step 5: Solve for x
    x = 2,489,921,544.96/54,116.10
  6. Step 6: Final answer
    x = 46,010.74

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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.