Home / 81,498.10-122,247.15-50,005.30

Finding the Fourth Proportional to 81,498.10, 122,247.15 and 50,005.30

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Solution

The fourth proportional to 81,498.10, 122,247.15 and 50,005.30 is: 75,007.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,498.10 : 122,247.15 = 50,005.30 : x
  2. Step 2: Convert to fraction form
    81,498.10/122,247.15 = 50,005.30/x
  3. Step 3: Cross multiply
    81,498.10x = 122,247.15 × 50,005.30
  4. Step 4: Simplify right side
    81,498.10x = 6,113,005,409.90
  5. Step 5: Solve for x
    x = 6,113,005,409.90/81,498.10
  6. Step 6: Final answer
    x = 75,007.95

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1.5x scale

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.