Home / 47,179.36-70,769.04-12,119.02

Finding the Fourth Proportional to 47,179.36, 70,769.04 and 12,119.02

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Solution

The fourth proportional to 47,179.36, 70,769.04 and 12,119.02 is: 18,178.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,179.36 : 70,769.04 = 12,119.02 : x
  2. Step 2: Convert to fraction form
    47,179.36/70,769.04 = 12,119.02/x
  3. Step 3: Cross multiply
    47,179.36x = 70,769.04 × 12,119.02
  4. Step 4: Simplify right side
    47,179.36x = 857,651,411.14
  5. Step 5: Solve for x
    x = 857,651,411.14/47,179.36
  6. Step 6: Final answer
    x = 18,178.53

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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.