Home / 85,644.26-118,236.70-51,661.32

Finding the Fourth Proportional to 85,644.26, 118,236.70 and 51,661.32

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Solution

The fourth proportional to 85,644.26, 118,236.70 and 51,661.32 is: 71,321.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,644.26 : 118,236.70 = 51,661.32 : x
  2. Step 2: Convert to fraction form
    85,644.26/118,236.70 = 51,661.32/x
  3. Step 3: Cross multiply
    85,644.26x = 118,236.70 × 51,661.32
  4. Step 4: Simplify right side
    85,644.26x = 6,108,263,994.44
  5. Step 5: Solve for x
    x = 6,108,263,994.44/85,644.26
  6. Step 6: Final answer
    x = 71,321.35

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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.