Home / 90,080.16-124,309.32-49,794.66

Finding the Fourth Proportional to 90,080.16, 124,309.32 and 49,794.66

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Solution

The fourth proportional to 90,080.16, 124,309.32 and 49,794.66 is: 68,715.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,080.16 : 124,309.32 = 49,794.66 : x
  2. Step 2: Convert to fraction form
    90,080.16/124,309.32 = 49,794.66/x
  3. Step 3: Cross multiply
    90,080.16x = 124,309.32 × 49,794.66
  4. Step 4: Simplify right side
    90,080.16x = 6,189,940,324.23
  5. Step 5: Solve for x
    x = 6,189,940,324.23/90,080.16
  6. Step 6: Final answer
    x = 68,715.91

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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.