Home / 55,919.30-77,168.04-30,426.44

Finding the Fourth Proportional to 55,919.30, 77,168.04 and 30,426.44

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Solution

The fourth proportional to 55,919.30, 77,168.04 and 30,426.44 is: 41,988.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,919.30 : 77,168.04 = 30,426.44 : x
  2. Step 2: Convert to fraction form
    55,919.30/77,168.04 = 30,426.44/x
  3. Step 3: Cross multiply
    55,919.30x = 77,168.04 × 30,426.44
  4. Step 4: Simplify right side
    55,919.30x = 2,347,948,738.98
  5. Step 5: Solve for x
    x = 2,347,948,738.98/55,919.30
  6. Step 6: Final answer
    x = 41,988.16

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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.