Home / 85,690.08-118,241.10-49,886.46

Finding the Fourth Proportional to 85,690.08, 118,241.10 and 49,886.46

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Solution

The fourth proportional to 85,690.08, 118,241.10 and 49,886.46 is: 68,836.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,690.08 : 118,241.10 = 49,886.46 : x
  2. Step 2: Convert to fraction form
    85,690.08/118,241.10 = 49,886.46/x
  3. Step 3: Cross multiply
    85,690.08x = 118,241.10 × 49,886.46
  4. Step 4: Simplify right side
    85,690.08x = 5,898,629,905.51
  5. Step 5: Solve for x
    x = 5,898,629,905.51/85,690.08
  6. Step 6: Final answer
    x = 68,836.79

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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.