Home / 76,730.78-115,057.61-44,720.16

Finding the Fourth Proportional to 76,730.78, 115,057.61 and 44,720.16

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Solution

The fourth proportional to 76,730.78, 115,057.61 and 44,720.16 is: 67,057.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,730.78 : 115,057.61 = 44,720.16 : x
  2. Step 2: Convert to fraction form
    76,730.78/115,057.61 = 44,720.16/x
  3. Step 3: Cross multiply
    76,730.78x = 115,057.61 × 44,720.16
  4. Step 4: Simplify right side
    76,730.78x = 5,145,394,728.42
  5. Step 5: Solve for x
    x = 5,145,394,728.42/76,730.78
  6. Step 6: Final answer
    x = 67,057.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.