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Finding the Fourth Proportional to 85,118.63, 117,464.52 and 47,393.69

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Solution

The fourth proportional to 85,118.63, 117,464.52 and 47,393.69 is: 65,403.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,118.63 : 117,464.52 = 47,393.69 : x
  2. Step 2: Convert to fraction form
    85,118.63/117,464.52 = 47,393.69/x
  3. Step 3: Cross multiply
    85,118.63x = 117,464.52 × 47,393.69
  4. Step 4: Simplify right side
    85,118.63x = 5,567,076,459.56
  5. Step 5: Solve for x
    x = 5,567,076,459.56/85,118.63
  6. Step 6: Final answer
    x = 65,403.74

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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.