Home / 75,666.44-104,418.15-47,387.72

Finding the Fourth Proportional to 75,666.44, 104,418.15 and 47,387.72

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Solution

The fourth proportional to 75,666.44, 104,418.15 and 47,387.72 is: 65,394.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,666.44 : 104,418.15 = 47,387.72 : x
  2. Step 2: Convert to fraction form
    75,666.44/104,418.15 = 47,387.72/x
  3. Step 3: Cross multiply
    75,666.44x = 104,418.15 × 47,387.72
  4. Step 4: Simplify right side
    75,666.44x = 4,948,137,533.03
  5. Step 5: Solve for x
    x = 4,948,137,533.03/75,666.44
  6. Step 6: Final answer
    x = 65,394.09

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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.