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Finding the Fourth Proportional to 85,755.24, 118,342 and 47,514.88

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Solution

The fourth proportional to 85,755.24, 118,342 and 47,514.88 is: 65,570.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,755.24 : 118,342 = 47,514.88 : x
  2. Step 2: Convert to fraction form
    85,755.24/118,342 = 47,514.88/x
  3. Step 3: Cross multiply
    85,755.24x = 118,342 × 47,514.88
  4. Step 4: Simplify right side
    85,755.24x = 5,623,005,928.96
  5. Step 5: Solve for x
    x = 5,623,005,928.96/85,755.24
  6. Step 6: Final answer
    x = 65,570.41

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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.