Home / 45,137.03-67,711.85-18,835.75

Finding the Fourth Proportional to 45,137.03, 67,711.85 and 18,835.75

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Solution

The fourth proportional to 45,137.03, 67,711.85 and 18,835.75 is: 28,256.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,137.03 : 67,711.85 = 18,835.75 : x
  2. Step 2: Convert to fraction form
    45,137.03/67,711.85 = 18,835.75/x
  3. Step 3: Cross multiply
    45,137.03x = 67,711.85 × 18,835.75
  4. Step 4: Simplify right side
    45,137.03x = 1,275,403,045.90
  5. Step 5: Solve for x
    x = 1,275,403,045.90/45,137.03
  6. Step 6: Final answer
    x = 28,256.25

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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.