Home / 55,165.72-82,697.28-20,097.40

Finding the Fourth Proportional to 55,165.72, 82,697.28 and 20,097.40

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Solution

The fourth proportional to 55,165.72, 82,697.28 and 20,097.40 is: 30,127.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,165.72 : 82,697.28 = 20,097.40 : x
  2. Step 2: Convert to fraction form
    55,165.72/82,697.28 = 20,097.40/x
  3. Step 3: Cross multiply
    55,165.72x = 82,697.28 × 20,097.40
  4. Step 4: Simplify right side
    55,165.72x = 1,662,000,315.07
  5. Step 5: Solve for x
    x = 1,662,000,315.07/55,165.72
  6. Step 6: Final answer
    x = 30,127.41

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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.