Home / 66,141.50-99,226.62-21,772.76

Finding the Fourth Proportional to 66,141.50, 99,226.62 and 21,772.76

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Solution

The fourth proportional to 66,141.50, 99,226.62 and 21,772.76 is: 32,663.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,141.50 : 99,226.62 = 21,772.76 : x
  2. Step 2: Convert to fraction form
    66,141.50/99,226.62 = 21,772.76/x
  3. Step 3: Cross multiply
    66,141.50x = 99,226.62 × 21,772.76
  4. Step 4: Simplify right side
    66,141.50x = 2,160,437,382.87
  5. Step 5: Solve for x
    x = 2,160,437,382.87/66,141.50
  6. Step 6: Final answer
    x = 32,663.87

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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.