Home / 71,443.21-107,157.23-29,327.71

Finding the Fourth Proportional to 71,443.21, 107,157.23 and 29,327.71

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Solution

The fourth proportional to 71,443.21, 107,157.23 and 29,327.71 is: 43,988.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,443.21 : 107,157.23 = 29,327.71 : x
  2. Step 2: Convert to fraction form
    71,443.21/107,157.23 = 29,327.71/x
  3. Step 3: Cross multiply
    71,443.21x = 107,157.23 × 29,327.71
  4. Step 4: Simplify right side
    71,443.21x = 3,142,676,019.20
  5. Step 5: Solve for x
    x = 3,142,676,019.20/71,443.21
  6. Step 6: Final answer
    x = 43,988.45

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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.