Home / 55,419.20-83,128.80-32,018.30

Finding the Fourth Proportional to 55,419.20, 83,128.80 and 32,018.30

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Solution

The fourth proportional to 55,419.20, 83,128.80 and 32,018.30 is: 48,027.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,419.20 : 83,128.80 = 32,018.30 : x
  2. Step 2: Convert to fraction form
    55,419.20/83,128.80 = 32,018.30/x
  3. Step 3: Cross multiply
    55,419.20x = 83,128.80 × 32,018.30
  4. Step 4: Simplify right side
    55,419.20x = 2,661,642,857.04
  5. Step 5: Solve for x
    x = 2,661,642,857.04/55,419.20
  6. Step 6: Final answer
    x = 48,027.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.