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Finding the Fourth Proportional to 69,204.32, 94,879.12 and 67,943.20

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Solution

The fourth proportional to 69,204.32, 94,879.12 and 67,943.20 is: 93,150.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,204.32 : 94,879.12 = 67,943.20 : x
  2. Step 2: Convert to fraction form
    69,204.32/94,879.12 = 67,943.20/x
  3. Step 3: Cross multiply
    69,204.32x = 94,879.12 × 67,943.20
  4. Step 4: Simplify right side
    69,204.32x = 6,446,391,025.98
  5. Step 5: Solve for x
    x = 6,446,391,025.98/69,204.32
  6. Step 6: Final answer
    x = 93,150.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.