Home / 76,785.66-115,099.56-29,389.64

Finding the Fourth Proportional to 76,785.66, 115,099.56 and 29,389.64

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Solution

The fourth proportional to 76,785.66, 115,099.56 and 29,389.64 is: 44,054.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,785.66 : 115,099.56 = 29,389.64 : x
  2. Step 2: Convert to fraction form
    76,785.66/115,099.56 = 29,389.64/x
  3. Step 3: Cross multiply
    76,785.66x = 115,099.56 × 29,389.64
  4. Step 4: Simplify right side
    76,785.66x = 3,382,734,057.06
  5. Step 5: Solve for x
    x = 3,382,734,057.06/76,785.66
  6. Step 6: Final answer
    x = 44,054.24

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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.