Home / 55,219.04-82,838.30-20,207.60

Finding the Fourth Proportional to 55,219.04, 82,838.30 and 20,207.60

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Solution

The fourth proportional to 55,219.04, 82,838.30 and 20,207.60 is: 30,314.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,219.04 : 82,838.30 = 20,207.60 : x
  2. Step 2: Convert to fraction form
    55,219.04/82,838.30 = 20,207.60/x
  3. Step 3: Cross multiply
    55,219.04x = 82,838.30 × 20,207.60
  4. Step 4: Simplify right side
    55,219.04x = 1,673,963,231.08
  5. Step 5: Solve for x
    x = 1,673,963,231.08/55,219.04
  6. Step 6: Final answer
    x = 30,314.96

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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.