Home / 54,388.26-81,533.18-19,319.72

Finding the Fourth Proportional to 54,388.26, 81,533.18 and 19,319.72

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Solution

The fourth proportional to 54,388.26, 81,533.18 and 19,319.72 is: 28,962.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,388.26 : 81,533.18 = 19,319.72 : x
  2. Step 2: Convert to fraction form
    54,388.26/81,533.18 = 19,319.72/x
  3. Step 3: Cross multiply
    54,388.26x = 81,533.18 × 19,319.72
  4. Step 4: Simplify right side
    54,388.26x = 1,575,197,848.94
  5. Step 5: Solve for x
    x = 1,575,197,848.94/54,388.26
  6. Step 6: Final answer
    x = 28,962.09

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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.