Home / 47,142.16-70,713.90-12,080.92

Finding the Fourth Proportional to 47,142.16, 70,713.90 and 12,080.92

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Solution

The fourth proportional to 47,142.16, 70,713.90 and 12,080.92 is: 18,121.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,142.16 : 70,713.90 = 12,080.92 : x
  2. Step 2: Convert to fraction form
    47,142.16/70,713.90 = 12,080.92/x
  3. Step 3: Cross multiply
    47,142.16x = 70,713.90 × 12,080.92
  4. Step 4: Simplify right side
    47,142.16x = 854,288,968.79
  5. Step 5: Solve for x
    x = 854,288,968.79/47,142.16
  6. Step 6: Final answer
    x = 18,121.55

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1.5x scale

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.