Home / 70,606.85-105,845.38-30,600.75

Finding the Fourth Proportional to 70,606.85, 105,845.38 and 30,600.75

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Solution

The fourth proportional to 70,606.85, 105,845.38 and 30,600.75 is: 45,873.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,606.85 : 105,845.38 = 30,600.75 : x
  2. Step 2: Convert to fraction form
    70,606.85/105,845.38 = 30,600.75/x
  3. Step 3: Cross multiply
    70,606.85x = 105,845.38 × 30,600.75
  4. Step 4: Simplify right side
    70,606.85x = 3,238,948,012.04
  5. Step 5: Solve for x
    x = 3,238,948,012.04/70,606.85
  6. Step 6: Final answer
    x = 45,873.00

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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.