Home / 55,082.14-76,013.16-31,213.36

Finding the Fourth Proportional to 55,082.14, 76,013.16 and 31,213.36

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Solution

The fourth proportional to 55,082.14, 76,013.16 and 31,213.36 is: 43,074.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,082.14 : 76,013.16 = 31,213.36 : x
  2. Step 2: Convert to fraction form
    55,082.14/76,013.16 = 31,213.36/x
  3. Step 3: Cross multiply
    55,082.14x = 76,013.16 × 31,213.36
  4. Step 4: Simplify right side
    55,082.14x = 2,372,626,127.82
  5. Step 5: Solve for x
    x = 2,372,626,127.82/55,082.14
  6. Step 6: Final answer
    x = 43,074.33

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1.5x scale

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.