Home / 66,623.40-99,939.96-21,027.06

Finding the Fourth Proportional to 66,623.40, 99,939.96 and 21,027.06

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Solution

The fourth proportional to 66,623.40, 99,939.96 and 21,027.06 is: 31,542.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,623.40 : 99,939.96 = 21,027.06 : x
  2. Step 2: Convert to fraction form
    66,623.40/99,939.96 = 21,027.06/x
  3. Step 3: Cross multiply
    66,623.40x = 99,939.96 × 21,027.06
  4. Step 4: Simplify right side
    66,623.40x = 2,101,443,535.32
  5. Step 5: Solve for x
    x = 2,101,443,535.32/66,623.40
  6. Step 6: Final answer
    x = 31,542.12

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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.