Home / 45,090.28-67,645.14-13,502.85

Finding the Fourth Proportional to 45,090.28, 67,645.14 and 13,502.85

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Solution

The fourth proportional to 45,090.28, 67,645.14 and 13,502.85 is: 20,257.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,090.28 : 67,645.14 = 13,502.85 : x
  2. Step 2: Convert to fraction form
    45,090.28/67,645.14 = 13,502.85/x
  3. Step 3: Cross multiply
    45,090.28x = 67,645.14 × 13,502.85
  4. Step 4: Simplify right side
    45,090.28x = 913,401,840.42
  5. Step 5: Solve for x
    x = 913,401,840.42/45,090.28
  6. Step 6: Final answer
    x = 20,257.18

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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.