Home / 61,258.10-91,890.60-21,815.22

Finding the Fourth Proportional to 61,258.10, 91,890.60 and 21,815.22

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Solution

The fourth proportional to 61,258.10, 91,890.60 and 21,815.22 is: 32,724.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,258.10 : 91,890.60 = 21,815.22 : x
  2. Step 2: Convert to fraction form
    61,258.10/91,890.60 = 21,815.22/x
  3. Step 3: Cross multiply
    61,258.10x = 91,890.60 × 21,815.22
  4. Step 4: Simplify right side
    61,258.10x = 2,004,613,195.48
  5. Step 5: Solve for x
    x = 2,004,613,195.48/61,258.10
  6. Step 6: Final answer
    x = 32,724.05

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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.