Home / 55,389.39-76,436.96-30,238.89

Finding the Fourth Proportional to 55,389.39, 76,436.96 and 30,238.89

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Solution

The fourth proportional to 55,389.39, 76,436.96 and 30,238.89 is: 41,729.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,389.39 : 76,436.96 = 30,238.89 : x
  2. Step 2: Convert to fraction form
    55,389.39/76,436.96 = 30,238.89/x
  3. Step 3: Cross multiply
    55,389.39x = 76,436.96 × 30,238.89
  4. Step 4: Simplify right side
    55,389.39x = 2,311,368,825.37
  5. Step 5: Solve for x
    x = 2,311,368,825.37/55,389.39
  6. Step 6: Final answer
    x = 41,729.45

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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.