Home / 45,460.35-68,189.40-12,180.38

Finding the Fourth Proportional to 45,460.35, 68,189.40 and 12,180.38

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Solution

The fourth proportional to 45,460.35, 68,189.40 and 12,180.38 is: 18,270.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,460.35 : 68,189.40 = 12,180.38 : x
  2. Step 2: Convert to fraction form
    45,460.35/68,189.40 = 12,180.38/x
  3. Step 3: Cross multiply
    45,460.35x = 68,189.40 × 12,180.38
  4. Step 4: Simplify right side
    45,460.35x = 830,572,463.03
  5. Step 5: Solve for x
    x = 830,572,463.03/45,460.35
  6. Step 6: Final answer
    x = 18,270.26

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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.