Home / 75,792.12-104,600.52-56,638.64

Finding the Fourth Proportional to 75,792.12, 104,600.52 and 56,638.64

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Solution

The fourth proportional to 75,792.12, 104,600.52 and 56,638.64 is: 78,166.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,792.12 : 104,600.52 = 56,638.64 : x
  2. Step 2: Convert to fraction form
    75,792.12/104,600.52 = 56,638.64/x
  3. Step 3: Cross multiply
    75,792.12x = 104,600.52 × 56,638.64
  4. Step 4: Simplify right side
    75,792.12x = 5,924,431,196.09
  5. Step 5: Solve for x
    x = 5,924,431,196.09/75,792.12
  6. Step 6: Final answer
    x = 78,166.85

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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.