Home / 45,406.22-68,109.39-21,708.20

Finding the Fourth Proportional to 45,406.22, 68,109.39 and 21,708.20

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Solution

The fourth proportional to 45,406.22, 68,109.39 and 21,708.20 is: 32,562.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,406.22 : 68,109.39 = 21,708.20 : x
  2. Step 2: Convert to fraction form
    45,406.22/68,109.39 = 21,708.20/x
  3. Step 3: Cross multiply
    45,406.22x = 68,109.39 × 21,708.20
  4. Step 4: Simplify right side
    45,406.22x = 1,478,532,047.16
  5. Step 5: Solve for x
    x = 1,478,532,047.16/45,406.22
  6. Step 6: Final answer
    x = 32,562.32

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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.