Home / 68,735.10-103,102.65-45,192.45

Finding the Fourth Proportional to 68,735.10, 103,102.65 and 45,192.45

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Solution

The fourth proportional to 68,735.10, 103,102.65 and 45,192.45 is: 67,788.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,735.10 : 103,102.65 = 45,192.45 : x
  2. Step 2: Convert to fraction form
    68,735.10/103,102.65 = 45,192.45/x
  3. Step 3: Cross multiply
    68,735.10x = 103,102.65 × 45,192.45
  4. Step 4: Simplify right side
    68,735.10x = 4,659,461,354.99
  5. Step 5: Solve for x
    x = 4,659,461,354.99/68,735.10
  6. Step 6: Final answer
    x = 67,788.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.