Home / 55,914.76-77,186.58-39,971.56

Finding the Fourth Proportional to 55,914.76, 77,186.58 and 39,971.56

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Solution

The fourth proportional to 55,914.76, 77,186.58 and 39,971.56 is: 55,178.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,914.76 : 77,186.58 = 39,971.56 : x
  2. Step 2: Convert to fraction form
    55,914.76/77,186.58 = 39,971.56/x
  3. Step 3: Cross multiply
    55,914.76x = 77,186.58 × 39,971.56
  4. Step 4: Simplify right side
    55,914.76x = 3,085,268,013.66
  5. Step 5: Solve for x
    x = 3,085,268,013.66/55,914.76
  6. Step 6: Final answer
    x = 55,178.06

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Double scale
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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.