Home / 72,631.10-108,952.93-20,040.57

Finding the Fourth Proportional to 72,631.10, 108,952.93 and 20,040.57

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Solution

The fourth proportional to 72,631.10, 108,952.93 and 20,040.57 is: 30,062.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,631.10 : 108,952.93 = 20,040.57 : x
  2. Step 2: Convert to fraction form
    72,631.10/108,952.93 = 20,040.57/x
  3. Step 3: Cross multiply
    72,631.10x = 108,952.93 × 20,040.57
  4. Step 4: Simplify right side
    72,631.10x = 2,183,478,820.37
  5. Step 5: Solve for x
    x = 2,183,478,820.37/72,631.10
  6. Step 6: Final answer
    x = 30,062.59

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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.