Home / 55,145.40-82,652.48-31,722.63

Finding the Fourth Proportional to 55,145.40, 82,652.48 and 31,722.63

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Solution

The fourth proportional to 55,145.40, 82,652.48 and 31,722.63 is: 47,546.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,145.40 : 82,652.48 = 31,722.63 : x
  2. Step 2: Convert to fraction form
    55,145.40/82,652.48 = 31,722.63/x
  3. Step 3: Cross multiply
    55,145.40x = 82,652.48 × 31,722.63
  4. Step 4: Simplify right side
    55,145.40x = 2,621,954,041.62
  5. Step 5: Solve for x
    x = 2,621,954,041.62/55,145.40
  6. Step 6: Final answer
    x = 47,546.20

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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.