Home / 70,179.88-105,261.18-30,729.64

Finding the Fourth Proportional to 70,179.88, 105,261.18 and 30,729.64

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Solution

The fourth proportional to 70,179.88, 105,261.18 and 30,729.64 is: 46,090.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,179.88 : 105,261.18 = 30,729.64 : x
  2. Step 2: Convert to fraction form
    70,179.88/105,261.18 = 30,729.64/x
  3. Step 3: Cross multiply
    70,179.88x = 105,261.18 × 30,729.64
  4. Step 4: Simplify right side
    70,179.88x = 3,234,638,167.38
  5. Step 5: Solve for x
    x = 3,234,638,167.38/70,179.88
  6. Step 6: Final answer
    x = 46,090.68

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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.