Home / 53,435.14-73,741.27-30,778.20

Finding the Fourth Proportional to 53,435.14, 73,741.27 and 30,778.20

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Solution

The fourth proportional to 53,435.14, 73,741.27 and 30,778.20 is: 42,474.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,435.14 : 73,741.27 = 30,778.20 : x
  2. Step 2: Convert to fraction form
    53,435.14/73,741.27 = 30,778.20/x
  3. Step 3: Cross multiply
    53,435.14x = 73,741.27 × 30,778.20
  4. Step 4: Simplify right side
    53,435.14x = 2,269,623,874.32
  5. Step 5: Solve for x
    x = 2,269,623,874.32/53,435.14
  6. Step 6: Final answer
    x = 42,474.37

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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.