Home / 55,372.28-83,069.36-20,312.24

Finding the Fourth Proportional to 55,372.28, 83,069.36 and 20,312.24

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Solution

The fourth proportional to 55,372.28, 83,069.36 and 20,312.24 is: 30,472.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,372.28 : 83,069.36 = 20,312.24 : x
  2. Step 2: Convert to fraction form
    55,372.28/83,069.36 = 20,312.24/x
  3. Step 3: Cross multiply
    55,372.28x = 83,069.36 × 20,312.24
  4. Step 4: Simplify right side
    55,372.28x = 1,687,324,776.97
  5. Step 5: Solve for x
    x = 1,687,324,776.97/55,372.28
  6. Step 6: Final answer
    x = 30,472.37

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1.5x scale

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.