Home / 55,147.29-76,129.07-35,286.81

Finding the Fourth Proportional to 55,147.29, 76,129.07 and 35,286.81

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Solution

The fourth proportional to 55,147.29, 76,129.07 and 35,286.81 is: 48,712.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,147.29 : 76,129.07 = 35,286.81 : x
  2. Step 2: Convert to fraction form
    55,147.29/76,129.07 = 35,286.81/x
  3. Step 3: Cross multiply
    55,147.29x = 76,129.07 × 35,286.81
  4. Step 4: Simplify right side
    55,147.29x = 2,686,351,852.13
  5. Step 5: Solve for x
    x = 2,686,351,852.13/55,147.29
  6. Step 6: Final answer
    x = 48,712.31

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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.