Home / 66,210.54-91,372.26-35,997.90

Finding the Fourth Proportional to 66,210.54, 91,372.26 and 35,997.90

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Solution

The fourth proportional to 66,210.54, 91,372.26 and 35,997.90 is: 49,678.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,210.54 : 91,372.26 = 35,997.90 : x
  2. Step 2: Convert to fraction form
    66,210.54/91,372.26 = 35,997.90/x
  3. Step 3: Cross multiply
    66,210.54x = 91,372.26 × 35,997.90
  4. Step 4: Simplify right side
    66,210.54x = 3,289,209,478.25
  5. Step 5: Solve for x
    x = 3,289,209,478.25/66,210.54
  6. Step 6: Final answer
    x = 49,678.03

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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.