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Finding the Fourth Proportional to 85,357.70, 117,793.62 and 47,117.24

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Solution

The fourth proportional to 85,357.70, 117,793.62 and 47,117.24 is: 65,021.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,357.70 : 117,793.62 = 47,117.24 : x
  2. Step 2: Convert to fraction form
    85,357.70/117,793.62 = 47,117.24/x
  3. Step 3: Cross multiply
    85,357.70x = 117,793.62 × 47,117.24
  4. Step 4: Simplify right side
    85,357.70x = 5,550,110,264.01
  5. Step 5: Solve for x
    x = 5,550,110,264.01/85,357.70
  6. Step 6: Final answer
    x = 65,021.79

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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.