Home / 61,928.83-85,497.20-40,769.61

Finding the Fourth Proportional to 61,928.83, 85,497.20 and 40,769.61

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Solution

The fourth proportional to 61,928.83, 85,497.20 and 40,769.61 is: 56,285.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,928.83 : 85,497.20 = 40,769.61 : x
  2. Step 2: Convert to fraction form
    61,928.83/85,497.20 = 40,769.61/x
  3. Step 3: Cross multiply
    61,928.83x = 85,497.20 × 40,769.61
  4. Step 4: Simplify right side
    61,928.83x = 3,485,687,500.09
  5. Step 5: Solve for x
    x = 3,485,687,500.09/61,928.83
  6. Step 6: Final answer
    x = 56,285.38

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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.