Home / 45,417.96-68,145.66-20,104.20

Finding the Fourth Proportional to 45,417.96, 68,145.66 and 20,104.20

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Solution

The fourth proportional to 45,417.96, 68,145.66 and 20,104.20 is: 30,164.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,417.96 : 68,145.66 = 20,104.20 : x
  2. Step 2: Convert to fraction form
    45,417.96/68,145.66 = 20,104.20/x
  3. Step 3: Cross multiply
    45,417.96x = 68,145.66 × 20,104.20
  4. Step 4: Simplify right side
    45,417.96x = 1,370,013,977.77
  5. Step 5: Solve for x
    x = 1,370,013,977.77/45,417.96
  6. Step 6: Final answer
    x = 30,164.59

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1.5x scale

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.