Home / 85,648.64-118,198.32-47,923.16

Finding the Fourth Proportional to 85,648.64, 118,198.32 and 47,923.16

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Solution

The fourth proportional to 85,648.64, 118,198.32 and 47,923.16 is: 66,135.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,648.64 : 118,198.32 = 47,923.16 : x
  2. Step 2: Convert to fraction form
    85,648.64/118,198.32 = 47,923.16/x
  3. Step 3: Cross multiply
    85,648.64x = 118,198.32 × 47,923.16
  4. Step 4: Simplify right side
    85,648.64x = 5,664,437,001.09
  5. Step 5: Solve for x
    x = 5,664,437,001.09/85,648.64
  6. Step 6: Final answer
    x = 66,135.75

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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.