Home / 85,610.54-118,136.12-47,877.50

Finding the Fourth Proportional to 85,610.54, 118,136.12 and 47,877.50

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Solution

The fourth proportional to 85,610.54, 118,136.12 and 47,877.50 is: 66,067.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,610.54 : 118,136.12 = 47,877.50 : x
  2. Step 2: Convert to fraction form
    85,610.54/118,136.12 = 47,877.50/x
  3. Step 3: Cross multiply
    85,610.54x = 118,136.12 × 47,877.50
  4. Step 4: Simplify right side
    85,610.54x = 5,656,062,085.30
  5. Step 5: Solve for x
    x = 5,656,062,085.30/85,610.54
  6. Step 6: Final answer
    x = 66,067.36

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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.