Home / 54,030.12-80,989.74-20,741.22

Finding the Fourth Proportional to 54,030.12, 80,989.74 and 20,741.22

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Solution

The fourth proportional to 54,030.12, 80,989.74 and 20,741.22 is: 31,090.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,030.12 : 80,989.74 = 20,741.22 : x
  2. Step 2: Convert to fraction form
    54,030.12/80,989.74 = 20,741.22/x
  3. Step 3: Cross multiply
    54,030.12x = 80,989.74 × 20,741.22
  4. Step 4: Simplify right side
    54,030.12x = 1,679,826,015.08
  5. Step 5: Solve for x
    x = 1,679,826,015.08/54,030.12
  6. Step 6: Final answer
    x = 31,090.55

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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.