Home / 72,812.49-109,245.03-25,434.57

Finding the Fourth Proportional to 72,812.49, 109,245.03 and 25,434.57

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Solution

The fourth proportional to 72,812.49, 109,245.03 and 25,434.57 is: 38,161.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,812.49 : 109,245.03 = 25,434.57 : x
  2. Step 2: Convert to fraction form
    72,812.49/109,245.03 = 25,434.57/x
  3. Step 3: Cross multiply
    72,812.49x = 109,245.03 × 25,434.57
  4. Step 4: Simplify right side
    72,812.49x = 2,778,600,676.98
  5. Step 5: Solve for x
    x = 2,778,600,676.98/72,812.49
  6. Step 6: Final answer
    x = 38,161.05

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1.5x scale

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.