Home / 51,449.22-77,176.81-19,859.45

Finding the Fourth Proportional to 51,449.22, 77,176.81 and 19,859.45

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Solution

The fourth proportional to 51,449.22, 77,176.81 and 19,859.45 is: 29,790.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,449.22 : 77,176.81 = 19,859.45 : x
  2. Step 2: Convert to fraction form
    51,449.22/77,176.81 = 19,859.45/x
  3. Step 3: Cross multiply
    51,449.22x = 77,176.81 × 19,859.45
  4. Step 4: Simplify right side
    51,449.22x = 1,532,688,999.35
  5. Step 5: Solve for x
    x = 1,532,688,999.35/51,449.22
  6. Step 6: Final answer
    x = 29,790.33

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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.