Home / 75,153.47-103,661.91-48,329.91

Finding the Fourth Proportional to 75,153.47, 103,661.91 and 48,329.91

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Solution

The fourth proportional to 75,153.47, 103,661.91 and 48,329.91 is: 66,663.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,153.47 : 103,661.91 = 48,329.91 : x
  2. Step 2: Convert to fraction form
    75,153.47/103,661.91 = 48,329.91/x
  3. Step 3: Cross multiply
    75,153.47x = 103,661.91 × 48,329.91
  4. Step 4: Simplify right side
    75,153.47x = 5,009,970,780.73
  5. Step 5: Solve for x
    x = 5,009,970,780.73/75,153.47
  6. Step 6: Final answer
    x = 66,663.20

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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.