Home / 54,238.20-81,358.02-19,153.32

Finding the Fourth Proportional to 54,238.20, 81,358.02 and 19,153.32

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Solution

The fourth proportional to 54,238.20, 81,358.02 and 19,153.32 is: 28,730.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,238.20 : 81,358.02 = 19,153.32 : x
  2. Step 2: Convert to fraction form
    54,238.20/81,358.02 = 19,153.32/x
  3. Step 3: Cross multiply
    54,238.20x = 81,358.02 × 19,153.32
  4. Step 4: Simplify right side
    54,238.20x = 1,558,276,191.63
  5. Step 5: Solve for x
    x = 1,558,276,191.63/54,238.20
  6. Step 6: Final answer
    x = 28,730.23

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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.