Home / 66,318.87-99,490.61-21,946

Finding the Fourth Proportional to 66,318.87, 99,490.61 and 21,946

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Solution

The fourth proportional to 66,318.87, 99,490.61 and 21,946 is: 32,923.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,318.87 : 99,490.61 = 21,946 : x
  2. Step 2: Convert to fraction form
    66,318.87/99,490.61 = 21,946/x
  3. Step 3: Cross multiply
    66,318.87x = 99,490.61 × 21,946
  4. Step 4: Simplify right side
    66,318.87x = 2,183,420,927.06
  5. Step 5: Solve for x
    x = 2,183,420,927.06/66,318.87
  6. Step 6: Final answer
    x = 32,923.07

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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.