Home / 68,507.04-102,704.40-26,378.40

Finding the Fourth Proportional to 68,507.04, 102,704.40 and 26,378.40

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Solution

The fourth proportional to 68,507.04, 102,704.40 and 26,378.40 is: 39,545.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,507.04 : 102,704.40 = 26,378.40 : x
  2. Step 2: Convert to fraction form
    68,507.04/102,704.40 = 26,378.40/x
  3. Step 3: Cross multiply
    68,507.04x = 102,704.40 × 26,378.40
  4. Step 4: Simplify right side
    68,507.04x = 2,709,177,744.96
  5. Step 5: Solve for x
    x = 2,709,177,744.96/68,507.04
  6. Step 6: Final answer
    x = 39,545.98

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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.