Home / 81,894.08-122,836.12-48,178.76

Finding the Fourth Proportional to 81,894.08, 122,836.12 and 48,178.76

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Solution

The fourth proportional to 81,894.08, 122,836.12 and 48,178.76 is: 72,265.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,894.08 : 122,836.12 = 48,178.76 : x
  2. Step 2: Convert to fraction form
    81,894.08/122,836.12 = 48,178.76/x
  3. Step 3: Cross multiply
    81,894.08x = 122,836.12 × 48,178.76
  4. Step 4: Simplify right side
    81,894.08x = 5,918,091,944.81
  5. Step 5: Solve for x
    x = 5,918,091,944.81/81,894.08
  6. Step 6: Final answer
    x = 72,265.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.