Home / 85,271,979.20-117,713,760.48-54,373,680.32

Finding the Fourth Proportional to 85,271,979.20, 117,713,760.48 and 54,373,680.32

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Solution

The fourth proportional to 85,271,979.20, 117,713,760.48 and 54,373,680.32 is: 75,060,183.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,271,979.20 : 117,713,760.48 = 54,373,680.32 : x
  2. Step 2: Convert to fraction form
    85,271,979.20/117,713,760.48 = 54,373,680.32/x
  3. Step 3: Cross multiply
    85,271,979.20x = 117,713,760.48 × 54,373,680.32
  4. Step 4: Simplify right side
    85,271,979.20x = 6,400,530,381,604,570
  5. Step 5: Solve for x
    x = 6,400,530,381,604,570/85,271,979.20
  6. Step 6: Final answer
    x = 75,060,183.21

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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.