Home / 45,221.45-67,822.38-28,559.21

Finding the Fourth Proportional to 45,221.45, 67,822.38 and 28,559.21

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Solution

The fourth proportional to 45,221.45, 67,822.38 and 28,559.21 is: 42,832.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,221.45 : 67,822.38 = 28,559.21 : x
  2. Step 2: Convert to fraction form
    45,221.45/67,822.38 = 28,559.21/x
  3. Step 3: Cross multiply
    45,221.45x = 67,822.38 × 28,559.21
  4. Step 4: Simplify right side
    45,221.45x = 1,936,953,254.01
  5. Step 5: Solve for x
    x = 1,936,953,254.01/45,221.45
  6. Step 6: Final answer
    x = 42,832.63

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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.