Home / 85,671.09-118,226.25-47,945.34

Finding the Fourth Proportional to 85,671.09, 118,226.25 and 47,945.34

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Solution

The fourth proportional to 85,671.09, 118,226.25 and 47,945.34 is: 66,164.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,671.09 : 118,226.25 = 47,945.34 : x
  2. Step 2: Convert to fraction form
    85,671.09/118,226.25 = 47,945.34/x
  3. Step 3: Cross multiply
    85,671.09x = 118,226.25 × 47,945.34
  4. Step 4: Simplify right side
    85,671.09x = 5,668,397,753.18
  5. Step 5: Solve for x
    x = 5,668,397,753.18/85,671.09
  6. Step 6: Final answer
    x = 66,164.65

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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.