Home / 45,000.20-67,445.58-31,856.36

Finding the Fourth Proportional to 45,000.20, 67,445.58 and 31,856.36

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Solution

The fourth proportional to 45,000.20, 67,445.58 and 31,856.36 is: 47,745.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,000.20 : 67,445.58 = 31,856.36 : x
  2. Step 2: Convert to fraction form
    45,000.20/67,445.58 = 31,856.36/x
  3. Step 3: Cross multiply
    45,000.20x = 67,445.58 × 31,856.36
  4. Step 4: Simplify right side
    45,000.20x = 2,148,570,676.89
  5. Step 5: Solve for x
    x = 2,148,570,676.89/45,000.20
  6. Step 6: Final answer
    x = 47,745.80

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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.