Home / 54,520.08-81,731.65-21,232.45

Finding the Fourth Proportional to 54,520.08, 81,731.65 and 21,232.45

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Solution

The fourth proportional to 54,520.08, 81,731.65 and 21,232.45 is: 31,829.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,520.08 : 81,731.65 = 21,232.45 : x
  2. Step 2: Convert to fraction form
    54,520.08/81,731.65 = 21,232.45/x
  3. Step 3: Cross multiply
    54,520.08x = 81,731.65 × 21,232.45
  4. Step 4: Simplify right side
    54,520.08x = 1,735,363,118.96
  5. Step 5: Solve for x
    x = 1,735,363,118.96/54,520.08
  6. Step 6: Final answer
    x = 31,829.80

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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.