Home / 45,372.12-68,058.18-12,090.44

Finding the Fourth Proportional to 45,372.12, 68,058.18 and 12,090.44

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Solution

The fourth proportional to 45,372.12, 68,058.18 and 12,090.44 is: 18,135.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,372.12 : 68,058.18 = 12,090.44 : x
  2. Step 2: Convert to fraction form
    45,372.12/68,058.18 = 12,090.44/x
  3. Step 3: Cross multiply
    45,372.12x = 68,058.18 × 12,090.44
  4. Step 4: Simplify right side
    45,372.12x = 822,853,341.80
  5. Step 5: Solve for x
    x = 822,853,341.80/45,372.12
  6. Step 6: Final answer
    x = 18,135.66

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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.