Home / 82,421.16-113,743.89-53,759.58

Finding the Fourth Proportional to 82,421.16, 113,743.89 and 53,759.58

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Solution

The fourth proportional to 82,421.16, 113,743.89 and 53,759.58 is: 74,189.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,421.16 : 113,743.89 = 53,759.58 : x
  2. Step 2: Convert to fraction form
    82,421.16/113,743.89 = 53,759.58/x
  3. Step 3: Cross multiply
    82,421.16x = 113,743.89 × 53,759.58
  4. Step 4: Simplify right side
    82,421.16x = 6,114,823,753.97
  5. Step 5: Solve for x
    x = 6,114,823,753.97/82,421.16
  6. Step 6: Final answer
    x = 74,189.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.