Home / 55,389.70-76,437.39-30,239.20

Finding the Fourth Proportional to 55,389.70, 76,437.39 and 30,239.20

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Solution

The fourth proportional to 55,389.70, 76,437.39 and 30,239.20 is: 41,729.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,389.70 : 76,437.39 = 30,239.20 : x
  2. Step 2: Convert to fraction form
    55,389.70/76,437.39 = 30,239.20/x
  3. Step 3: Cross multiply
    55,389.70x = 76,437.39 × 30,239.20
  4. Step 4: Simplify right side
    55,389.70x = 2,311,405,332.59
  5. Step 5: Solve for x
    x = 2,311,405,332.59/55,389.70
  6. Step 6: Final answer
    x = 41,729.88

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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.