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Finding the Fourth Proportional to 69,777.83, 104,478.12 and 36,427.45

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Solution

The fourth proportional to 69,777.83, 104,478.12 and 36,427.45 is: 54,542.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,777.83 : 104,478.12 = 36,427.45 : x
  2. Step 2: Convert to fraction form
    69,777.83/104,478.12 = 36,427.45/x
  3. Step 3: Cross multiply
    69,777.83x = 104,478.12 × 36,427.45
  4. Step 4: Simplify right side
    69,777.83x = 3,805,870,979.57
  5. Step 5: Solve for x
    x = 3,805,870,979.57/69,777.83
  6. Step 6: Final answer
    x = 54,542.70

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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.