Home / 79,207.04-109,305.69-47,383.42

Finding the Fourth Proportional to 79,207.04, 109,305.69 and 47,383.42

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Solution

The fourth proportional to 79,207.04, 109,305.69 and 47,383.42 is: 65,389.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,207.04 : 109,305.69 = 47,383.42 : x
  2. Step 2: Convert to fraction form
    79,207.04/109,305.69 = 47,383.42/x
  3. Step 3: Cross multiply
    79,207.04x = 109,305.69 × 47,383.42
  4. Step 4: Simplify right side
    79,207.04x = 5,179,276,871.13
  5. Step 5: Solve for x
    x = 5,179,276,871.13/79,207.04
  6. Step 6: Final answer
    x = 65,389.10

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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.