Home / 75,464.91-104,142.08-47,187.15

Finding the Fourth Proportional to 75,464.91, 104,142.08 and 47,187.15

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Solution

The fourth proportional to 75,464.91, 104,142.08 and 47,187.15 is: 65,118.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,464.91 : 104,142.08 = 47,187.15 : x
  2. Step 2: Convert to fraction form
    75,464.91/104,142.08 = 47,187.15/x
  3. Step 3: Cross multiply
    75,464.91x = 104,142.08 × 47,187.15
  4. Step 4: Simplify right side
    75,464.91x = 4,914,167,714.34
  5. Step 5: Solve for x
    x = 4,914,167,714.34/75,464.91
  6. Step 6: Final answer
    x = 65,118.58

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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.