Home / 55,157.04-82,738.08-20,095.20

Finding the Fourth Proportional to 55,157.04, 82,738.08 and 20,095.20

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Solution

The fourth proportional to 55,157.04, 82,738.08 and 20,095.20 is: 30,143.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,157.04 : 82,738.08 = 20,095.20 : x
  2. Step 2: Convert to fraction form
    55,157.04/82,738.08 = 20,095.20/x
  3. Step 3: Cross multiply
    55,157.04x = 82,738.08 × 20,095.20
  4. Step 4: Simplify right side
    55,157.04x = 1,662,638,265.22
  5. Step 5: Solve for x
    x = 1,662,638,265.22/55,157.04
  6. Step 6: Final answer
    x = 30,143.72

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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.