Home / 66,771.40-99,995.10-35,537.80

Finding the Fourth Proportional to 66,771.40, 99,995.10 and 35,537.80

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Solution

The fourth proportional to 66,771.40, 99,995.10 and 35,537.80 is: 53,220.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,771.40 : 99,995.10 = 35,537.80 : x
  2. Step 2: Convert to fraction form
    66,771.40/99,995.10 = 35,537.80/x
  3. Step 3: Cross multiply
    66,771.40x = 99,995.10 × 35,537.80
  4. Step 4: Simplify right side
    66,771.40x = 3,553,605,864.78
  5. Step 5: Solve for x
    x = 3,553,605,864.78/66,771.40
  6. Step 6: Final answer
    x = 53,220.48

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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.