Home / 68,438.52-102,716.10-40,317.35

Finding the Fourth Proportional to 68,438.52, 102,716.10 and 40,317.35

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Solution

The fourth proportional to 68,438.52, 102,716.10 and 40,317.35 is: 60,510.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,438.52 : 102,716.10 = 40,317.35 : x
  2. Step 2: Convert to fraction form
    68,438.52/102,716.10 = 40,317.35/x
  3. Step 3: Cross multiply
    68,438.52x = 102,716.10 × 40,317.35
  4. Step 4: Simplify right side
    68,438.52x = 4,141,240,440.75
  5. Step 5: Solve for x
    x = 4,141,240,440.75/68,438.52
  6. Step 6: Final answer
    x = 60,510.37

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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.