Home / 75,118.24-103,582.56-63,311.68

Finding the Fourth Proportional to 75,118.24, 103,582.56 and 63,311.68

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Solution

The fourth proportional to 75,118.24, 103,582.56 and 63,311.68 is: 87,302.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,118.24 : 103,582.56 = 63,311.68 : x
  2. Step 2: Convert to fraction form
    75,118.24/103,582.56 = 63,311.68/x
  3. Step 3: Cross multiply
    75,118.24x = 103,582.56 × 63,311.68
  4. Step 4: Simplify right side
    75,118.24x = 6,557,985,892.30
  5. Step 5: Solve for x
    x = 6,557,985,892.30/75,118.24
  6. Step 6: Final answer
    x = 87,302.18

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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.