Home / 47,141.16-70,712.40-12,079.92

Finding the Fourth Proportional to 47,141.16, 70,712.40 and 12,079.92

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Solution

The fourth proportional to 47,141.16, 70,712.40 and 12,079.92 is: 18,120.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,141.16 : 70,712.40 = 12,079.92 : x
  2. Step 2: Convert to fraction form
    47,141.16/70,712.40 = 12,079.92/x
  3. Step 3: Cross multiply
    47,141.16x = 70,712.40 × 12,079.92
  4. Step 4: Simplify right side
    47,141.16x = 854,200,135.01
  5. Step 5: Solve for x
    x = 854,200,135.01/47,141.16
  6. Step 6: Final answer
    x = 18,120.05

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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.