Home / 55,372.53-83,069.74-20,312.49

Finding the Fourth Proportional to 55,372.53, 83,069.74 and 20,312.49

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Solution

The fourth proportional to 55,372.53, 83,069.74 and 20,312.49 is: 30,472.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,372.53 : 83,069.74 = 20,312.49 : x
  2. Step 2: Convert to fraction form
    55,372.53/83,069.74 = 20,312.49/x
  3. Step 3: Cross multiply
    55,372.53x = 83,069.74 × 20,312.49
  4. Step 4: Simplify right side
    55,372.53x = 1,687,353,161.49
  5. Step 5: Solve for x
    x = 1,687,353,161.49/55,372.53
  6. Step 6: Final answer
    x = 30,472.75

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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.