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Finding the Fourth Proportional to 85,524.08, 118,013 and 47,278.48

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Solution

The fourth proportional to 85,524.08, 118,013 and 47,278.48 is: 65,238.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,524.08 : 118,013 = 47,278.48 : x
  2. Step 2: Convert to fraction form
    85,524.08/118,013 = 47,278.48/x
  3. Step 3: Cross multiply
    85,524.08x = 118,013 × 47,278.48
  4. Step 4: Simplify right side
    85,524.08x = 5,579,475,260.24
  5. Step 5: Solve for x
    x = 5,579,475,260.24/85,524.08
  6. Step 6: Final answer
    x = 65,238.65

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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.