Home / 47,785.53-71,690.49-28,080.66

Finding the Fourth Proportional to 47,785.53, 71,690.49 and 28,080.66

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Solution

The fourth proportional to 47,785.53, 71,690.49 and 28,080.66 is: 42,128.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,785.53 : 71,690.49 = 28,080.66 : x
  2. Step 2: Convert to fraction form
    47,785.53/71,690.49 = 28,080.66/x
  3. Step 3: Cross multiply
    47,785.53x = 71,690.49 × 28,080.66
  4. Step 4: Simplify right side
    47,785.53x = 2,013,116,274.92
  5. Step 5: Solve for x
    x = 2,013,116,274.92/47,785.53
  6. Step 6: Final answer
    x = 42,128.16

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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.