Home / 51,631.58-77,402.25-20,019.86

Finding the Fourth Proportional to 51,631.58, 77,402.25 and 20,019.86

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Solution

The fourth proportional to 51,631.58, 77,402.25 and 20,019.86 is: 30,012.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,631.58 : 77,402.25 = 20,019.86 : x
  2. Step 2: Convert to fraction form
    51,631.58/77,402.25 = 20,019.86/x
  3. Step 3: Cross multiply
    51,631.58x = 77,402.25 × 20,019.86
  4. Step 4: Simplify right side
    51,631.58x = 1,549,581,821.67
  5. Step 5: Solve for x
    x = 1,549,581,821.67/51,631.58
  6. Step 6: Final answer
    x = 30,012.29

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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.