Home / 47,758.16-71,628.04-45,387.39

Finding the Fourth Proportional to 47,758.16, 71,628.04 and 45,387.39

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Solution

The fourth proportional to 47,758.16, 71,628.04 and 45,387.39 is: 68,072.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,758.16 : 71,628.04 = 45,387.39 : x
  2. Step 2: Convert to fraction form
    47,758.16/71,628.04 = 45,387.39/x
  3. Step 3: Cross multiply
    47,758.16x = 71,628.04 × 45,387.39
  4. Step 4: Simplify right side
    47,758.16x = 3,251,009,786.42
  5. Step 5: Solve for x
    x = 3,251,009,786.42/47,758.16
  6. Step 6: Final answer
    x = 68,072.34

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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.