Home / 45,438.39-68,157.63-21,740.35

Finding the Fourth Proportional to 45,438.39, 68,157.63 and 21,740.35

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Solution

The fourth proportional to 45,438.39, 68,157.63 and 21,740.35 is: 32,610.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,438.39 : 68,157.63 = 21,740.35 : x
  2. Step 2: Convert to fraction form
    45,438.39/68,157.63 = 21,740.35/x
  3. Step 3: Cross multiply
    45,438.39x = 68,157.63 × 21,740.35
  4. Step 4: Simplify right side
    45,438.39x = 1,481,770,627.63
  5. Step 5: Solve for x
    x = 1,481,770,627.63/45,438.39
  6. Step 6: Final answer
    x = 32,610.54

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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.