Home / 74,160.55-111,240.87-18,000.74

Finding the Fourth Proportional to 74,160.55, 111,240.87 and 18,000.74

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Solution

The fourth proportional to 74,160.55, 111,240.87 and 18,000.74 is: 27,001.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,160.55 : 111,240.87 = 18,000.74 : x
  2. Step 2: Convert to fraction form
    74,160.55/111,240.87 = 18,000.74/x
  3. Step 3: Cross multiply
    74,160.55x = 111,240.87 × 18,000.74
  4. Step 4: Simplify right side
    74,160.55x = 2,002,418,188.84
  5. Step 5: Solve for x
    x = 2,002,418,188.84/74,160.55
  6. Step 6: Final answer
    x = 27,001.12

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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.