Home / 54,198.22-81,298.02-19,113.28

Finding the Fourth Proportional to 54,198.22, 81,298.02 and 19,113.28

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Solution

The fourth proportional to 54,198.22, 81,298.02 and 19,113.28 is: 28,670.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,198.22 : 81,298.02 = 19,113.28 : x
  2. Step 2: Convert to fraction form
    54,198.22/81,298.02 = 19,113.28/x
  3. Step 3: Cross multiply
    54,198.22x = 81,298.02 × 19,113.28
  4. Step 4: Simplify right side
    54,198.22x = 1,553,871,819.71
  5. Step 5: Solve for x
    x = 1,553,871,819.71/54,198.22
  6. Step 6: Final answer
    x = 28,670.16

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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.