Home / 66,299.24-99,458.18-21,305.51

Finding the Fourth Proportional to 66,299.24, 99,458.18 and 21,305.51

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Solution

The fourth proportional to 66,299.24, 99,458.18 and 21,305.51 is: 31,961.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,299.24 : 99,458.18 = 21,305.51 : x
  2. Step 2: Convert to fraction form
    66,299.24/99,458.18 = 21,305.51/x
  3. Step 3: Cross multiply
    66,299.24x = 99,458.18 × 21,305.51
  4. Step 4: Simplify right side
    66,299.24x = 2,119,007,390.69
  5. Step 5: Solve for x
    x = 2,119,007,390.69/66,299.24
  6. Step 6: Final answer
    x = 31,961.26

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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.