Home / 45,114.79-67,634.13-28,438.07

Finding the Fourth Proportional to 45,114.79, 67,634.13 and 28,438.07

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Solution

The fourth proportional to 45,114.79, 67,634.13 and 28,438.07 is: 42,633.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,114.79 : 67,634.13 = 28,438.07 : x
  2. Step 2: Convert to fraction form
    45,114.79/67,634.13 = 28,438.07/x
  3. Step 3: Cross multiply
    45,114.79x = 67,634.13 × 28,438.07
  4. Step 4: Simplify right side
    45,114.79x = 1,923,383,731.84
  5. Step 5: Solve for x
    x = 1,923,383,731.84/45,114.79
  6. Step 6: Final answer
    x = 42,633.11

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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.