Home / 45,090.39-67,646.72-13,925.64

Finding the Fourth Proportional to 45,090.39, 67,646.72 and 13,925.64

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Solution

The fourth proportional to 45,090.39, 67,646.72 and 13,925.64 is: 20,891.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,090.39 : 67,646.72 = 13,925.64 : x
  2. Step 2: Convert to fraction form
    45,090.39/67,646.72 = 13,925.64/x
  3. Step 3: Cross multiply
    45,090.39x = 67,646.72 × 13,925.64
  4. Step 4: Simplify right side
    45,090.39x = 942,023,800.27
  5. Step 5: Solve for x
    x = 942,023,800.27/45,090.39
  6. Step 6: Final answer
    x = 20,891.90

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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.