Home / 75,143.16-103,690.38-44,922.48

Finding the Fourth Proportional to 75,143.16, 103,690.38 and 44,922.48

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Solution

The fourth proportional to 75,143.16, 103,690.38 and 44,922.48 is: 61,988.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,143.16 : 103,690.38 = 44,922.48 : x
  2. Step 2: Convert to fraction form
    75,143.16/103,690.38 = 44,922.48/x
  3. Step 3: Cross multiply
    75,143.16x = 103,690.38 × 44,922.48
  4. Step 4: Simplify right side
    75,143.16x = 4,658,029,021.74
  5. Step 5: Solve for x
    x = 4,658,029,021.74/75,143.16
  6. Step 6: Final answer
    x = 61,988.73

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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.