Home / 89,162.04-122,972.64-75,777.60

Finding the Fourth Proportional to 89,162.04, 122,972.64 and 75,777.60

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Solution

The fourth proportional to 89,162.04, 122,972.64 and 75,777.60 is: 104,512.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,162.04 : 122,972.64 = 75,777.60 : x
  2. Step 2: Convert to fraction form
    89,162.04/122,972.64 = 75,777.60/x
  3. Step 3: Cross multiply
    89,162.04x = 122,972.64 × 75,777.60
  4. Step 4: Simplify right side
    89,162.04x = 9,318,571,524.86
  5. Step 5: Solve for x
    x = 9,318,571,524.86/89,162.04
  6. Step 6: Final answer
    x = 104,512.77

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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.