Home / 47,140.38-70,714.74-12,080.04

Finding the Fourth Proportional to 47,140.38, 70,714.74 and 12,080.04

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Solution

The fourth proportional to 47,140.38, 70,714.74 and 12,080.04 is: 18,121.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,140.38 : 70,714.74 = 12,080.04 : x
  2. Step 2: Convert to fraction form
    47,140.38/70,714.74 = 12,080.04/x
  3. Step 3: Cross multiply
    47,140.38x = 70,714.74 × 12,080.04
  4. Step 4: Simplify right side
    47,140.38x = 854,236,887.79
  5. Step 5: Solve for x
    x = 854,236,887.79/47,140.38
  6. Step 6: Final answer
    x = 18,121.13

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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.