Home / 55,623.02-76,759.84-30,129.66

Finding the Fourth Proportional to 55,623.02, 76,759.84 and 30,129.66

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Solution

The fourth proportional to 55,623.02, 76,759.84 and 30,129.66 is: 41,578.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,623.02 : 76,759.84 = 30,129.66 : x
  2. Step 2: Convert to fraction form
    55,623.02/76,759.84 = 30,129.66/x
  3. Step 3: Cross multiply
    55,623.02x = 76,759.84 × 30,129.66
  4. Step 4: Simplify right side
    55,623.02x = 2,312,747,880.85
  5. Step 5: Solve for x
    x = 2,312,747,880.85/55,623.02
  6. Step 6: Final answer
    x = 41,578.97

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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.