Home / 47,179.15-70,769.43-12,118.03

Finding the Fourth Proportional to 47,179.15, 70,769.43 and 12,118.03

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Solution

The fourth proportional to 47,179.15, 70,769.43 and 12,118.03 is: 18,177.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,179.15 : 70,769.43 = 12,118.03 : x
  2. Step 2: Convert to fraction form
    47,179.15/70,769.43 = 12,118.03/x
  3. Step 3: Cross multiply
    47,179.15x = 70,769.43 × 12,118.03
  4. Step 4: Simplify right side
    47,179.15x = 857,586,075.82
  5. Step 5: Solve for x
    x = 857,586,075.82/47,179.15
  6. Step 6: Final answer
    x = 18,177.23

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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.