Home / 79,455.52-109,654.50-49,246.78

Finding the Fourth Proportional to 79,455.52, 109,654.50 and 49,246.78

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Solution

The fourth proportional to 79,455.52, 109,654.50 and 49,246.78 is: 67,964.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,455.52 : 109,654.50 = 49,246.78 : x
  2. Step 2: Convert to fraction form
    79,455.52/109,654.50 = 49,246.78/x
  3. Step 3: Cross multiply
    79,455.52x = 109,654.50 × 49,246.78
  4. Step 4: Simplify right side
    79,455.52x = 5,400,131,037.51
  5. Step 5: Solve for x
    x = 5,400,131,037.51/79,455.52
  6. Step 6: Final answer
    x = 67,964.20

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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.