Home / 30,102.60-45,170.10-25,739.94

Finding the Fourth Proportional to 30,102.60, 45,170.10 and 25,739.94

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Solution

The fourth proportional to 30,102.60, 45,170.10 and 25,739.94 is: 38,623.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,102.60 : 45,170.10 = 25,739.94 : x
  2. Step 2: Convert to fraction form
    30,102.60/45,170.10 = 25,739.94/x
  3. Step 3: Cross multiply
    30,102.60x = 45,170.10 × 25,739.94
  4. Step 4: Simplify right side
    30,102.60x = 1,162,675,663.79
  5. Step 5: Solve for x
    x = 1,162,675,663.79/30,102.60
  6. Step 6: Final answer
    x = 38,623.76

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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.