Home / 66,144.18-91,279.64-35,930.10

Finding the Fourth Proportional to 66,144.18, 91,279.64 and 35,930.10

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Solution

The fourth proportional to 66,144.18, 91,279.64 and 35,930.10 is: 49,583.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,144.18 : 91,279.64 = 35,930.10 : x
  2. Step 2: Convert to fraction form
    66,144.18/91,279.64 = 35,930.10/x
  3. Step 3: Cross multiply
    66,144.18x = 91,279.64 × 35,930.10
  4. Step 4: Simplify right side
    66,144.18x = 3,279,686,593.16
  5. Step 5: Solve for x
    x = 3,279,686,593.16/66,144.18
  6. Step 6: Final answer
    x = 49,583.90

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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.