Home / 85,664.58-118,218.69-47,938.74

Finding the Fourth Proportional to 85,664.58, 118,218.69 and 47,938.74

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Solution

The fourth proportional to 85,664.58, 118,218.69 and 47,938.74 is: 66,156.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,664.58 : 118,218.69 = 47,938.74 : x
  2. Step 2: Convert to fraction form
    85,664.58/118,218.69 = 47,938.74/x
  3. Step 3: Cross multiply
    85,664.58x = 118,218.69 × 47,938.74
  4. Step 4: Simplify right side
    85,664.58x = 5,667,255,043.05
  5. Step 5: Solve for x
    x = 5,667,255,043.05/85,664.58
  6. Step 6: Final answer
    x = 66,156.34

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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.