Home / 53,361.18-73,641.26-30,703.61

Finding the Fourth Proportional to 53,361.18, 73,641.26 and 30,703.61

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Solution

The fourth proportional to 53,361.18, 73,641.26 and 30,703.61 is: 42,372.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,361.18 : 73,641.26 = 30,703.61 : x
  2. Step 2: Convert to fraction form
    53,361.18/73,641.26 = 30,703.61/x
  3. Step 3: Cross multiply
    53,361.18x = 73,641.26 × 30,703.61
  4. Step 4: Simplify right side
    53,361.18x = 2,261,052,787.81
  5. Step 5: Solve for x
    x = 2,261,052,787.81/53,361.18
  6. Step 6: Final answer
    x = 42,372.62

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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.