Home / 66,019.85-99,042.30-21,649.26

Finding the Fourth Proportional to 66,019.85, 99,042.30 and 21,649.26

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Solution

The fourth proportional to 66,019.85, 99,042.30 and 21,649.26 is: 32,478.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,019.85 : 99,042.30 = 21,649.26 : x
  2. Step 2: Convert to fraction form
    66,019.85/99,042.30 = 21,649.26/x
  3. Step 3: Cross multiply
    66,019.85x = 99,042.30 × 21,649.26
  4. Step 4: Simplify right side
    66,019.85x = 2,144,192,503.70
  5. Step 5: Solve for x
    x = 2,144,192,503.70/66,019.85
  6. Step 6: Final answer
    x = 32,478.00

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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.