Home / 75,186.32-112,771.53-39,633.39

Finding the Fourth Proportional to 75,186.32, 112,771.53 and 39,633.39

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Solution

The fourth proportional to 75,186.32, 112,771.53 and 39,633.39 is: 59,445.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,186.32 : 112,771.53 = 39,633.39 : x
  2. Step 2: Convert to fraction form
    75,186.32/112,771.53 = 39,633.39/x
  3. Step 3: Cross multiply
    75,186.32x = 112,771.53 × 39,633.39
  4. Step 4: Simplify right side
    75,186.32x = 4,469,518,029.39
  5. Step 5: Solve for x
    x = 4,469,518,029.39/75,186.32
  6. Step 6: Final answer
    x = 59,445.89

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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.