Home / 85,991.20-118,661.07-47,747.14

Finding the Fourth Proportional to 85,991.20, 118,661.07 and 47,747.14

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Solution

The fourth proportional to 85,991.20, 118,661.07 and 47,747.14 is: 65,887.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,991.20 : 118,661.07 = 47,747.14 : x
  2. Step 2: Convert to fraction form
    85,991.20/118,661.07 = 47,747.14/x
  3. Step 3: Cross multiply
    85,991.20x = 118,661.07 × 47,747.14
  4. Step 4: Simplify right side
    85,991.20x = 5,665,726,721.84
  5. Step 5: Solve for x
    x = 5,665,726,721.84/85,991.20
  6. Step 6: Final answer
    x = 65,887.29

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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.