Home / 45,712.20-68,535.90-17,621.40

Finding the Fourth Proportional to 45,712.20, 68,535.90 and 17,621.40

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Solution

The fourth proportional to 45,712.20, 68,535.90 and 17,621.40 is: 26,419.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,712.20 : 68,535.90 = 17,621.40 : x
  2. Step 2: Convert to fraction form
    45,712.20/68,535.90 = 17,621.40/x
  3. Step 3: Cross multiply
    45,712.20x = 68,535.90 × 17,621.40
  4. Step 4: Simplify right side
    45,712.20x = 1,207,698,508.26
  5. Step 5: Solve for x
    x = 1,207,698,508.26/45,712.20
  6. Step 6: Final answer
    x = 26,419.61

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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.