Home / 75,116.79-103,662.40-41,124.71

Finding the Fourth Proportional to 75,116.79, 103,662.40 and 41,124.71

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Solution

The fourth proportional to 75,116.79, 103,662.40 and 41,124.71 is: 56,752.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,116.79 : 103,662.40 = 41,124.71 : x
  2. Step 2: Convert to fraction form
    75,116.79/103,662.40 = 41,124.71/x
  3. Step 3: Cross multiply
    75,116.79x = 103,662.40 × 41,124.71
  4. Step 4: Simplify right side
    75,116.79x = 4,263,086,137.90
  5. Step 5: Solve for x
    x = 4,263,086,137.90/75,116.79
  6. Step 6: Final answer
    x = 56,752.77

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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.