Home / 90,410.10-124,768.89-50,127.61

Finding the Fourth Proportional to 90,410.10, 124,768.89 and 50,127.61

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Solution

The fourth proportional to 90,410.10, 124,768.89 and 50,127.61 is: 69,177.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,410.10 : 124,768.89 = 50,127.61 : x
  2. Step 2: Convert to fraction form
    90,410.10/124,768.89 = 50,127.61/x
  3. Step 3: Cross multiply
    90,410.10x = 124,768.89 × 50,127.61
  4. Step 4: Simplify right side
    90,410.10x = 6,254,366,258.05
  5. Step 5: Solve for x
    x = 6,254,366,258.05/90,410.10
  6. Step 6: Final answer
    x = 69,177.74

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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.