Home / 85,982.37-118,649.89-47,739.95

Finding the Fourth Proportional to 85,982.37, 118,649.89 and 47,739.95

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Solution

The fourth proportional to 85,982.37, 118,649.89 and 47,739.95 is: 65,877.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,982.37 : 118,649.89 = 47,739.95 : x
  2. Step 2: Convert to fraction form
    85,982.37/118,649.89 = 47,739.95/x
  3. Step 3: Cross multiply
    85,982.37x = 118,649.89 × 47,739.95
  4. Step 4: Simplify right side
    85,982.37x = 5,664,339,816.11
  5. Step 5: Solve for x
    x = 5,664,339,816.11/85,982.37
  6. Step 6: Final answer
    x = 65,877.92

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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.