Home / 85,456.02-117,928.61-47,215.44

Finding the Fourth Proportional to 85,456.02, 117,928.61 and 47,215.44

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Solution

The fourth proportional to 85,456.02, 117,928.61 and 47,215.44 is: 65,156.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,456.02 : 117,928.61 = 47,215.44 : x
  2. Step 2: Convert to fraction form
    85,456.02/117,928.61 = 47,215.44/x
  3. Step 3: Cross multiply
    85,456.02x = 117,928.61 × 47,215.44
  4. Step 4: Simplify right side
    85,456.02x = 5,568,051,209.74
  5. Step 5: Solve for x
    x = 5,568,051,209.74/85,456.02
  6. Step 6: Final answer
    x = 65,156.92

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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.