Home / 91,450.41-126,213.15-55,638.28

Finding the Fourth Proportional to 91,450.41, 126,213.15 and 55,638.28

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Solution

The fourth proportional to 91,450.41, 126,213.15 and 55,638.28 is: 76,787.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,450.41 : 126,213.15 = 55,638.28 : x
  2. Step 2: Convert to fraction form
    91,450.41/126,213.15 = 55,638.28/x
  3. Step 3: Cross multiply
    91,450.41x = 126,213.15 × 55,638.28
  4. Step 4: Simplify right side
    91,450.41x = 7,022,282,579.38
  5. Step 5: Solve for x
    x = 7,022,282,579.38/91,450.41
  6. Step 6: Final answer
    x = 76,787.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.