Home / 68,484.78-102,585.66-40,318.06

Finding the Fourth Proportional to 68,484.78, 102,585.66 and 40,318.06

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Solution

The fourth proportional to 68,484.78, 102,585.66 and 40,318.06 is: 60,393.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,484.78 : 102,585.66 = 40,318.06 : x
  2. Step 2: Convert to fraction form
    68,484.78/102,585.66 = 40,318.06/x
  3. Step 3: Cross multiply
    68,484.78x = 102,585.66 × 40,318.06
  4. Step 4: Simplify right side
    68,484.78x = 4,136,054,795.02
  5. Step 5: Solve for x
    x = 4,136,054,795.02/68,484.78
  6. Step 6: Final answer
    x = 60,393.78

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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.