Home / 66,342.45-91,553.58-36,129.18

Finding the Fourth Proportional to 66,342.45, 91,553.58 and 36,129.18

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Solution

The fourth proportional to 66,342.45, 91,553.58 and 36,129.18 is: 49,858.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,342.45 : 91,553.58 = 36,129.18 : x
  2. Step 2: Convert to fraction form
    66,342.45/91,553.58 = 36,129.18/x
  3. Step 3: Cross multiply
    66,342.45x = 91,553.58 × 36,129.18
  4. Step 4: Simplify right side
    66,342.45x = 3,307,755,771.46
  5. Step 5: Solve for x
    x = 3,307,755,771.46/66,342.45
  6. Step 6: Final answer
    x = 49,858.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.