Home / 74,869.55-112,303.87-18,709.37

Finding the Fourth Proportional to 74,869.55, 112,303.87 and 18,709.37

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Solution

The fourth proportional to 74,869.55, 112,303.87 and 18,709.37 is: 28,063.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,869.55 : 112,303.87 = 18,709.37 : x
  2. Step 2: Convert to fraction form
    74,869.55/112,303.87 = 18,709.37/x
  3. Step 3: Cross multiply
    74,869.55x = 112,303.87 × 18,709.37
  4. Step 4: Simplify right side
    74,869.55x = 2,101,134,469.11
  5. Step 5: Solve for x
    x = 2,101,134,469.11/74,869.55
  6. Step 6: Final answer
    x = 28,063.94

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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.