Home / 55,521.36-76,621.64-30,372.56

Finding the Fourth Proportional to 55,521.36, 76,621.64 and 30,372.56

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Solution

The fourth proportional to 55,521.36, 76,621.64 and 30,372.56 is: 41,915.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,521.36 : 76,621.64 = 30,372.56 : x
  2. Step 2: Convert to fraction form
    55,521.36/76,621.64 = 30,372.56/x
  3. Step 3: Cross multiply
    55,521.36x = 76,621.64 × 30,372.56
  4. Step 4: Simplify right side
    55,521.36x = 2,327,195,358.20
  5. Step 5: Solve for x
    x = 2,327,195,358.20/55,521.36
  6. Step 6: Final answer
    x = 41,915.32

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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.