Home / 78,052.29-107,711.37-42,241.51

Finding the Fourth Proportional to 78,052.29, 107,711.37 and 42,241.51

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Solution

The fourth proportional to 78,052.29, 107,711.37 and 42,241.51 is: 58,292.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,052.29 : 107,711.37 = 42,241.51 : x
  2. Step 2: Convert to fraction form
    78,052.29/107,711.37 = 42,241.51/x
  3. Step 3: Cross multiply
    78,052.29x = 107,711.37 × 42,241.51
  4. Step 4: Simplify right side
    78,052.29x = 4,549,890,912.97
  5. Step 5: Solve for x
    x = 4,549,890,912.97/78,052.29
  6. Step 6: Final answer
    x = 58,292.86

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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.