Home / 75,129.93-103,675.35-41,131.89

Finding the Fourth Proportional to 75,129.93, 103,675.35 and 41,131.89

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Solution

The fourth proportional to 75,129.93, 103,675.35 and 41,131.89 is: 56,759.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,129.93 : 103,675.35 = 41,131.89 : x
  2. Step 2: Convert to fraction form
    75,129.93/103,675.35 = 41,131.89/x
  3. Step 3: Cross multiply
    75,129.93x = 103,675.35 × 41,131.89
  4. Step 4: Simplify right side
    75,129.93x = 4,264,363,091.91
  5. Step 5: Solve for x
    x = 4,264,363,091.91/75,129.93
  6. Step 6: Final answer
    x = 56,759.84

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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.