Home / 66,730.44-92,121.36-38,430.66

Finding the Fourth Proportional to 66,730.44, 92,121.36 and 38,430.66

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Solution

The fourth proportional to 66,730.44, 92,121.36 and 38,430.66 is: 53,053.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,730.44 : 92,121.36 = 38,430.66 : x
  2. Step 2: Convert to fraction form
    66,730.44/92,121.36 = 38,430.66/x
  3. Step 3: Cross multiply
    66,730.44x = 92,121.36 × 38,430.66
  4. Step 4: Simplify right side
    66,730.44x = 3,540,284,664.90
  5. Step 5: Solve for x
    x = 3,540,284,664.90/66,730.44
  6. Step 6: Final answer
    x = 53,053.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.