Home / 71,027.12-106,565.52-31,580.48

Finding the Fourth Proportional to 71,027.12, 106,565.52 and 31,580.48

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Solution

The fourth proportional to 71,027.12, 106,565.52 and 31,580.48 is: 47,381.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,027.12 : 106,565.52 = 31,580.48 : x
  2. Step 2: Convert to fraction form
    71,027.12/106,565.52 = 31,580.48/x
  3. Step 3: Cross multiply
    71,027.12x = 106,565.52 × 31,580.48
  4. Step 4: Simplify right side
    71,027.12x = 3,365,390,273.05
  5. Step 5: Solve for x
    x = 3,365,390,273.05/71,027.12
  6. Step 6: Final answer
    x = 47,381.76

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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.