Home / 51,448.50-77,109-30,367.20

Finding the Fourth Proportional to 51,448.50, 77,109 and 30,367.20

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Solution

The fourth proportional to 51,448.50, 77,109 and 30,367.20 is: 45,513.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,448.50 : 77,109 = 30,367.20 : x
  2. Step 2: Convert to fraction form
    51,448.50/77,109 = 30,367.20/x
  3. Step 3: Cross multiply
    51,448.50x = 77,109 × 30,367.20
  4. Step 4: Simplify right side
    51,448.50x = 2,341,584,424.80
  5. Step 5: Solve for x
    x = 2,341,584,424.80/51,448.50
  6. Step 6: Final answer
    x = 45,513.17

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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.