Home / 55,070.56-75,990.66-30,865.94

Finding the Fourth Proportional to 55,070.56, 75,990.66 and 30,865.94

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Solution

The fourth proportional to 55,070.56, 75,990.66 and 30,865.94 is: 42,591.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,070.56 : 75,990.66 = 30,865.94 : x
  2. Step 2: Convert to fraction form
    55,070.56/75,990.66 = 30,865.94/x
  3. Step 3: Cross multiply
    55,070.56x = 75,990.66 × 30,865.94
  4. Step 4: Simplify right side
    55,070.56x = 2,345,522,727.66
  5. Step 5: Solve for x
    x = 2,345,522,727.66/55,070.56
  6. Step 6: Final answer
    x = 42,591.23

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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.