Home / 74,492.42-111,738.34-30,118.64

Finding the Fourth Proportional to 74,492.42, 111,738.34 and 30,118.64

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Solution

The fourth proportional to 74,492.42, 111,738.34 and 30,118.64 is: 45,177.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,492.42 : 111,738.34 = 30,118.64 : x
  2. Step 2: Convert to fraction form
    74,492.42/111,738.34 = 30,118.64/x
  3. Step 3: Cross multiply
    74,492.42x = 111,738.34 × 30,118.64
  4. Step 4: Simplify right side
    74,492.42x = 3,365,406,836.66
  5. Step 5: Solve for x
    x = 3,365,406,836.66/74,492.42
  6. Step 6: Final answer
    x = 45,177.84

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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.