Home / 84,490.10-126,735.15-53,462.90

Finding the Fourth Proportional to 84,490.10, 126,735.15 and 53,462.90

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Solution

The fourth proportional to 84,490.10, 126,735.15 and 53,462.90 is: 80,194.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,490.10 : 126,735.15 = 53,462.90 : x
  2. Step 2: Convert to fraction form
    84,490.10/126,735.15 = 53,462.90/x
  3. Step 3: Cross multiply
    84,490.10x = 126,735.15 × 53,462.90
  4. Step 4: Simplify right side
    84,490.10x = 6,775,628,650.94
  5. Step 5: Solve for x
    x = 6,775,628,650.94/84,490.10
  6. Step 6: Final answer
    x = 80,194.35

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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.