Home / 90,674.83-125,121.94-56,687.07

Finding the Fourth Proportional to 90,674.83, 125,121.94 and 56,687.07

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Solution

The fourth proportional to 90,674.83, 125,121.94 and 56,687.07 is: 78,222.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,674.83 : 125,121.94 = 56,687.07 : x
  2. Step 2: Convert to fraction form
    90,674.83/125,121.94 = 56,687.07/x
  3. Step 3: Cross multiply
    90,674.83x = 125,121.94 × 56,687.07
  4. Step 4: Simplify right side
    90,674.83x = 7,092,796,171.32
  5. Step 5: Solve for x
    x = 7,092,796,171.32/90,674.83
  6. Step 6: Final answer
    x = 78,222.33

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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.