Home / 66,463.16-99,694.73-19,715.63

Finding the Fourth Proportional to 66,463.16, 99,694.73 and 19,715.63

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Solution

The fourth proportional to 66,463.16, 99,694.73 and 19,715.63 is: 29,573.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,463.16 : 99,694.73 = 19,715.63 : x
  2. Step 2: Convert to fraction form
    66,463.16/99,694.73 = 19,715.63/x
  3. Step 3: Cross multiply
    66,463.16x = 99,694.73 × 19,715.63
  4. Step 4: Simplify right side
    66,463.16x = 1,965,544,409.63
  5. Step 5: Solve for x
    x = 1,965,544,409.63/66,463.16
  6. Step 6: Final answer
    x = 29,573.44

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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.