Home / 45,245.08-67,876.47-13,657.72

Finding the Fourth Proportional to 45,245.08, 67,876.47 and 13,657.72

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Solution

The fourth proportional to 45,245.08, 67,876.47 and 13,657.72 is: 20,489.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,245.08 : 67,876.47 = 13,657.72 : x
  2. Step 2: Convert to fraction form
    45,245.08/67,876.47 = 13,657.72/x
  3. Step 3: Cross multiply
    45,245.08x = 67,876.47 × 13,657.72
  4. Step 4: Simplify right side
    45,245.08x = 927,037,821.85
  5. Step 5: Solve for x
    x = 927,037,821.85/45,245.08
  6. Step 6: Final answer
    x = 20,489.25

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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.