Home / 54,585.03-81,873.86-21,298.89

Finding the Fourth Proportional to 54,585.03, 81,873.86 and 21,298.89

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Solution

The fourth proportional to 54,585.03, 81,873.86 and 21,298.89 is: 31,946.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,585.03 : 81,873.86 = 21,298.89 : x
  2. Step 2: Convert to fraction form
    54,585.03/81,873.86 = 21,298.89/x
  3. Step 3: Cross multiply
    54,585.03x = 81,873.86 × 21,298.89
  4. Step 4: Simplify right side
    54,585.03x = 1,743,822,231.52
  5. Step 5: Solve for x
    x = 1,743,822,231.52/54,585.03
  6. Step 6: Final answer
    x = 31,946.90

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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.