Home / 68,102.60-102,153.42-40,316.36

Finding the Fourth Proportional to 68,102.60, 102,153.42 and 40,316.36

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Solution

The fourth proportional to 68,102.60, 102,153.42 and 40,316.36 is: 60,474.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,102.60 : 102,153.42 = 40,316.36 : x
  2. Step 2: Convert to fraction form
    68,102.60/102,153.42 = 40,316.36/x
  3. Step 3: Cross multiply
    68,102.60x = 102,153.42 × 40,316.36
  4. Step 4: Simplify right side
    68,102.60x = 4,118,454,055.95
  5. Step 5: Solve for x
    x = 4,118,454,055.95/68,102.60
  6. Step 6: Final answer
    x = 60,474.26

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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.