Home / 75,153.49-103,661.88-48,329.93

Finding the Fourth Proportional to 75,153.49, 103,661.88 and 48,329.93

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Solution

The fourth proportional to 75,153.49, 103,661.88 and 48,329.93 is: 66,663.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,153.49 : 103,661.88 = 48,329.93 : x
  2. Step 2: Convert to fraction form
    75,153.49/103,661.88 = 48,329.93/x
  3. Step 3: Cross multiply
    75,153.49x = 103,661.88 × 48,329.93
  4. Step 4: Simplify right side
    75,153.49x = 5,009,971,481.99
  5. Step 5: Solve for x
    x = 5,009,971,481.99/75,153.49
  6. Step 6: Final answer
    x = 66,663.19

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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.