Home / 75,117.72-103,663.68-41,125.64

Finding the Fourth Proportional to 75,117.72, 103,663.68 and 41,125.64

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Solution

The fourth proportional to 75,117.72, 103,663.68 and 41,125.64 is: 56,754.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,117.72 : 103,663.68 = 41,125.64 : x
  2. Step 2: Convert to fraction form
    75,117.72/103,663.68 = 41,125.64/x
  3. Step 3: Cross multiply
    75,117.72x = 103,663.68 × 41,125.64
  4. Step 4: Simplify right side
    75,117.72x = 4,263,235,184.76
  5. Step 5: Solve for x
    x = 4,263,235,184.76/75,117.72
  6. Step 6: Final answer
    x = 56,754.05

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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.