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Finding the Fourth Proportional to 85,899.82, 118,594.92 and 57,259.84

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Solution

The fourth proportional to 85,899.82, 118,594.92 and 57,259.84 is: 79,054.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,899.82 : 118,594.92 = 57,259.84 : x
  2. Step 2: Convert to fraction form
    85,899.82/118,594.92 = 57,259.84/x
  3. Step 3: Cross multiply
    85,899.82x = 118,594.92 × 57,259.84
  4. Step 4: Simplify right side
    85,899.82x = 6,790,726,144.01
  5. Step 5: Solve for x
    x = 6,790,726,144.01/85,899.82
  6. Step 6: Final answer
    x = 79,054.02

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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.