Home / 68,890.12-103,066.60-60,389.14

Finding the Fourth Proportional to 68,890.12, 103,066.60 and 60,389.14

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Solution

The fourth proportional to 68,890.12, 103,066.60 and 60,389.14 is: 90,348.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,890.12 : 103,066.60 = 60,389.14 : x
  2. Step 2: Convert to fraction form
    68,890.12/103,066.60 = 60,389.14/x
  3. Step 3: Cross multiply
    68,890.12x = 103,066.60 × 60,389.14
  4. Step 4: Simplify right side
    68,890.12x = 6,224,102,778.93
  5. Step 5: Solve for x
    x = 6,224,102,778.93/68,890.12
  6. Step 6: Final answer
    x = 90,348.27

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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.