Home / 85,305.35-117,728.07-47,072.49

Finding the Fourth Proportional to 85,305.35, 117,728.07 and 47,072.49

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Solution

The fourth proportional to 85,305.35, 117,728.07 and 47,072.49 is: 64,963.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,305.35 : 117,728.07 = 47,072.49 : x
  2. Step 2: Convert to fraction form
    85,305.35/117,728.07 = 47,072.49/x
  3. Step 3: Cross multiply
    85,305.35x = 117,728.07 × 47,072.49
  4. Step 4: Simplify right side
    85,305.35x = 5,541,752,779.79
  5. Step 5: Solve for x
    x = 5,541,752,779.79/85,305.35
  6. Step 6: Final answer
    x = 64,963.72

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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.