Home / 51,812.68-77,684.55-20,225.65

Finding the Fourth Proportional to 51,812.68, 77,684.55 and 20,225.65

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Solution

The fourth proportional to 51,812.68, 77,684.55 and 20,225.65 is: 30,325.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,812.68 : 77,684.55 = 20,225.65 : x
  2. Step 2: Convert to fraction form
    51,812.68/77,684.55 = 20,225.65/x
  3. Step 3: Cross multiply
    51,812.68x = 77,684.55 × 20,225.65
  4. Step 4: Simplify right side
    51,812.68x = 1,571,220,401.42
  5. Step 5: Solve for x
    x = 1,571,220,401.42/51,812.68
  6. Step 6: Final answer
    x = 30,325.02

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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.