Home / 55,082.74-76,014.26-31,211.02

Finding the Fourth Proportional to 55,082.74, 76,014.26 and 31,211.02

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Solution

The fourth proportional to 55,082.74, 76,014.26 and 31,211.02 is: 43,071.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,082.74 : 76,014.26 = 31,211.02 : x
  2. Step 2: Convert to fraction form
    55,082.74/76,014.26 = 31,211.02/x
  3. Step 3: Cross multiply
    55,082.74x = 76,014.26 × 31,211.02
  4. Step 4: Simplify right side
    55,082.74x = 2,372,482,589.15
  5. Step 5: Solve for x
    x = 2,372,482,589.15/55,082.74
  6. Step 6: Final answer
    x = 43,071.25

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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.