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Finding the Fourth Proportional to 85,393.67, 117,847.83 and 47,153.07

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Solution

The fourth proportional to 85,393.67, 117,847.83 and 47,153.07 is: 65,073.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,393.67 : 117,847.83 = 47,153.07 : x
  2. Step 2: Convert to fraction form
    85,393.67/117,847.83 = 47,153.07/x
  3. Step 3: Cross multiply
    85,393.67x = 117,847.83 × 47,153.07
  4. Step 4: Simplify right side
    85,393.67x = 5,556,887,154.16
  5. Step 5: Solve for x
    x = 5,556,887,154.16/85,393.67
  6. Step 6: Final answer
    x = 65,073.76

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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.