Home / 85,519.70-118,017.36-47,793.95

Finding the Fourth Proportional to 85,519.70, 118,017.36 and 47,793.95

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Solution

The fourth proportional to 85,519.70, 118,017.36 and 47,793.95 is: 65,955.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,519.70 : 118,017.36 = 47,793.95 : x
  2. Step 2: Convert to fraction form
    85,519.70/118,017.36 = 47,793.95/x
  3. Step 3: Cross multiply
    85,519.70x = 118,017.36 × 47,793.95
  4. Step 4: Simplify right side
    85,519.70x = 5,640,515,212.89
  5. Step 5: Solve for x
    x = 5,640,515,212.89/85,519.70
  6. Step 6: Final answer
    x = 65,955.75

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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.