Home / 79,789.04-110,108.28-43,979.12

Finding the Fourth Proportional to 79,789.04, 110,108.28 and 43,979.12

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Solution

The fourth proportional to 79,789.04, 110,108.28 and 43,979.12 is: 60,690.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,789.04 : 110,108.28 = 43,979.12 : x
  2. Step 2: Convert to fraction form
    79,789.04/110,108.28 = 43,979.12/x
  3. Step 3: Cross multiply
    79,789.04x = 110,108.28 × 43,979.12
  4. Step 4: Simplify right side
    79,789.04x = 4,842,465,259.11
  5. Step 5: Solve for x
    x = 4,842,465,259.11/79,789.04
  6. Step 6: Final answer
    x = 60,690.86

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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.