Home / 85,517.20-118,055.82-53,703.64

Finding the Fourth Proportional to 85,517.20, 118,055.82 and 53,703.64

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Solution

The fourth proportional to 85,517.20, 118,055.82 and 53,703.64 is: 74,137.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,517.20 : 118,055.82 = 53,703.64 : x
  2. Step 2: Convert to fraction form
    85,517.20/118,055.82 = 53,703.64/x
  3. Step 3: Cross multiply
    85,517.20x = 118,055.82 × 53,703.64
  4. Step 4: Simplify right side
    85,517.20x = 6,340,027,257.18
  5. Step 5: Solve for x
    x = 6,340,027,257.18/85,517.20
  6. Step 6: Final answer
    x = 74,137.45

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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.