Home / 52,749.46-72,787.80-42,021.66

Finding the Fourth Proportional to 52,749.46, 72,787.80 and 42,021.66

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Solution

The fourth proportional to 52,749.46, 72,787.80 and 42,021.66 is: 57,984.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,749.46 : 72,787.80 = 42,021.66 : x
  2. Step 2: Convert to fraction form
    52,749.46/72,787.80 = 42,021.66/x
  3. Step 3: Cross multiply
    52,749.46x = 72,787.80 × 42,021.66
  4. Step 4: Simplify right side
    52,749.46x = 3,058,664,183.75
  5. Step 5: Solve for x
    x = 3,058,664,183.75/52,749.46
  6. Step 6: Final answer
    x = 57,984.75

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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.