Home / 75,087.79-103,579.55-48,200.11

Finding the Fourth Proportional to 75,087.79, 103,579.55 and 48,200.11

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Solution

The fourth proportional to 75,087.79, 103,579.55 and 48,200.11 is: 66,489.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,087.79 : 103,579.55 = 48,200.11 : x
  2. Step 2: Convert to fraction form
    75,087.79/103,579.55 = 48,200.11/x
  3. Step 3: Cross multiply
    75,087.79x = 103,579.55 × 48,200.11
  4. Step 4: Simplify right side
    75,087.79x = 4,992,545,703.75
  5. Step 5: Solve for x
    x = 4,992,545,703.75/75,087.79
  6. Step 6: Final answer
    x = 66,489.45

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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.