Home / 47,877.43-66,080.87-28,758.04

Finding the Fourth Proportional to 47,877.43, 66,080.87 and 28,758.04

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Solution

The fourth proportional to 47,877.43, 66,080.87 and 28,758.04 is: 39,692.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,877.43 : 66,080.87 = 28,758.04 : x
  2. Step 2: Convert to fraction form
    47,877.43/66,080.87 = 28,758.04/x
  3. Step 3: Cross multiply
    47,877.43x = 66,080.87 × 28,758.04
  4. Step 4: Simplify right side
    47,877.43x = 1,900,356,302.69
  5. Step 5: Solve for x
    x = 1,900,356,302.69/47,877.43
  6. Step 6: Final answer
    x = 39,692.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.