Home / 45,438.00-68,157.92-12,158.01

Finding the Fourth Proportional to 45,438.00, 68,157.92 and 12,158.01

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Solution

The fourth proportional to 45,438.00, 68,157.92 and 12,158.01 is: 18,237.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,438.00 : 68,157.92 = 12,158.01 : x
  2. Step 2: Convert to fraction form
    45,438.00/68,157.92 = 12,158.01/x
  3. Step 3: Cross multiply
    45,438.00x = 68,157.92 × 12,158.01
  4. Step 4: Simplify right side
    45,438.00x = 828,664,867.74
  5. Step 5: Solve for x
    x = 828,664,867.74/45,438.00
  6. Step 6: Final answer
    x = 18,237.26

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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.