Home / 85,685.25-118,245.56-47,959.50

Finding the Fourth Proportional to 85,685.25, 118,245.56 and 47,959.50

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Solution

The fourth proportional to 85,685.25, 118,245.56 and 47,959.50 is: 66,184.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,685.25 : 118,245.56 = 47,959.50 : x
  2. Step 2: Convert to fraction form
    85,685.25/118,245.56 = 47,959.50/x
  3. Step 3: Cross multiply
    85,685.25x = 118,245.56 × 47,959.50
  4. Step 4: Simplify right side
    85,685.25x = 5,670,998,138.44
  5. Step 5: Solve for x
    x = 5,670,998,138.44/85,685.25
  6. Step 6: Final answer
    x = 66,184.06

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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.