Home / 74,066.56-111,099.84-18,666.88

Finding the Fourth Proportional to 74,066.56, 111,099.84 and 18,666.88

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Solution

The fourth proportional to 74,066.56, 111,099.84 and 18,666.88 is: 28,000.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,066.56 : 111,099.84 = 18,666.88 : x
  2. Step 2: Convert to fraction form
    74,066.56/111,099.84 = 18,666.88/x
  3. Step 3: Cross multiply
    74,066.56x = 111,099.84 × 18,666.88
  4. Step 4: Simplify right side
    74,066.56x = 2,073,887,381.30
  5. Step 5: Solve for x
    x = 2,073,887,381.30/74,066.56
  6. Step 6: Final answer
    x = 28,000.32

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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.