Home / 84,372.24-126,558.64-31,767.60

Finding the Fourth Proportional to 84,372.24, 126,558.64 and 31,767.60

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Solution

The fourth proportional to 84,372.24, 126,558.64 and 31,767.60 is: 47,651.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,372.24 : 126,558.64 = 31,767.60 : x
  2. Step 2: Convert to fraction form
    84,372.24/126,558.64 = 31,767.60/x
  3. Step 3: Cross multiply
    84,372.24x = 126,558.64 × 31,767.60
  4. Step 4: Simplify right side
    84,372.24x = 4,020,464,252.06
  5. Step 5: Solve for x
    x = 4,020,464,252.06/84,372.24
  6. Step 6: Final answer
    x = 47,651.51

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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.