Home / 52,121.20-71,927.36-30,606.80

Finding the Fourth Proportional to 52,121.20, 71,927.36 and 30,606.80

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Solution

The fourth proportional to 52,121.20, 71,927.36 and 30,606.80 is: 42,237.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,121.20 : 71,927.36 = 30,606.80 : x
  2. Step 2: Convert to fraction form
    52,121.20/71,927.36 = 30,606.80/x
  3. Step 3: Cross multiply
    52,121.20x = 71,927.36 × 30,606.80
  4. Step 4: Simplify right side
    52,121.20x = 2,201,466,322.05
  5. Step 5: Solve for x
    x = 2,201,466,322.05/52,121.20
  6. Step 6: Final answer
    x = 42,237.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.