Home / 90,622.86-125,069.36-54,832.61

Finding the Fourth Proportional to 90,622.86, 125,069.36 and 54,832.61

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Solution

The fourth proportional to 90,622.86, 125,069.36 and 54,832.61 is: 75,674.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,622.86 : 125,069.36 = 54,832.61 : x
  2. Step 2: Convert to fraction form
    90,622.86/125,069.36 = 54,832.61/x
  3. Step 3: Cross multiply
    90,622.86x = 125,069.36 × 54,832.61
  4. Step 4: Simplify right side
    90,622.86x = 6,857,878,540.32
  5. Step 5: Solve for x
    x = 6,857,878,540.32/90,622.86
  6. Step 6: Final answer
    x = 75,674.93

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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.