Home / 55,579.06-76,699.15-30,085.35

Finding the Fourth Proportional to 55,579.06, 76,699.15 and 30,085.35

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Solution

The fourth proportional to 55,579.06, 76,699.15 and 30,085.35 is: 41,517.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,579.06 : 76,699.15 = 30,085.35 : x
  2. Step 2: Convert to fraction form
    55,579.06/76,699.15 = 30,085.35/x
  3. Step 3: Cross multiply
    55,579.06x = 76,699.15 × 30,085.35
  4. Step 4: Simplify right side
    55,579.06x = 2,307,520,772.45
  5. Step 5: Solve for x
    x = 2,307,520,772.45/55,579.06
  6. Step 6: Final answer
    x = 41,517.81

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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.