Home / 55,168.58-76,133.40-30,018.08

Finding the Fourth Proportional to 55,168.58, 76,133.40 and 30,018.08

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Solution

The fourth proportional to 55,168.58, 76,133.40 and 30,018.08 is: 41,425.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,168.58 : 76,133.40 = 30,018.08 : x
  2. Step 2: Convert to fraction form
    55,168.58/76,133.40 = 30,018.08/x
  3. Step 3: Cross multiply
    55,168.58x = 76,133.40 × 30,018.08
  4. Step 4: Simplify right side
    55,168.58x = 2,285,378,491.87
  5. Step 5: Solve for x
    x = 2,285,378,491.87/55,168.58
  6. Step 6: Final answer
    x = 41,425.36

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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.