Home / 45,114.94-67,634.34-28,438.20

Finding the Fourth Proportional to 45,114.94, 67,634.34 and 28,438.20

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Solution

The fourth proportional to 45,114.94, 67,634.34 and 28,438.20 is: 42,633.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,114.94 : 67,634.34 = 28,438.20 : x
  2. Step 2: Convert to fraction form
    45,114.94/67,634.34 = 28,438.20/x
  3. Step 3: Cross multiply
    45,114.94x = 67,634.34 × 28,438.20
  4. Step 4: Simplify right side
    45,114.94x = 1,923,399,036.22
  5. Step 5: Solve for x
    x = 1,923,399,036.22/45,114.94
  6. Step 6: Final answer
    x = 42,633.31

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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.