Home / 54,098.34-81,139.29-19,029.81

Finding the Fourth Proportional to 54,098.34, 81,139.29 and 19,029.81

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Solution

The fourth proportional to 54,098.34, 81,139.29 and 19,029.81 is: 28,541.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,098.34 : 81,139.29 = 19,029.81 : x
  2. Step 2: Convert to fraction form
    54,098.34/81,139.29 = 19,029.81/x
  3. Step 3: Cross multiply
    54,098.34x = 81,139.29 × 19,029.81
  4. Step 4: Simplify right side
    54,098.34x = 1,544,065,272.23
  5. Step 5: Solve for x
    x = 1,544,065,272.23/54,098.34
  6. Step 6: Final answer
    x = 28,541.82

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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.