Home / 70,203.04-105,278.40-20,266.24

Finding the Fourth Proportional to 70,203.04, 105,278.40 and 20,266.24

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Solution

The fourth proportional to 70,203.04, 105,278.40 and 20,266.24 is: 30,391.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,203.04 : 105,278.40 = 20,266.24 : x
  2. Step 2: Convert to fraction form
    70,203.04/105,278.40 = 20,266.24/x
  3. Step 3: Cross multiply
    70,203.04x = 105,278.40 × 20,266.24
  4. Step 4: Simplify right side
    70,203.04x = 2,133,597,321.22
  5. Step 5: Solve for x
    x = 2,133,597,321.22/70,203.04
  6. Step 6: Final answer
    x = 30,391.81

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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.