Home / 54,070.08-81,117.60-19,009.92

Finding the Fourth Proportional to 54,070.08, 81,117.60 and 19,009.92

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Solution

The fourth proportional to 54,070.08, 81,117.60 and 19,009.92 is: 28,519.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,070.08 : 81,117.60 = 19,009.92 : x
  2. Step 2: Convert to fraction form
    54,070.08/81,117.60 = 19,009.92/x
  3. Step 3: Cross multiply
    54,070.08x = 81,117.60 × 19,009.92
  4. Step 4: Simplify right side
    54,070.08x = 1,542,039,086.59
  5. Step 5: Solve for x
    x = 1,542,039,086.59/54,070.08
  6. Step 6: Final answer
    x = 28,519.27

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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.