Home / 45,415.36-68,134.56-14,250.88

Finding the Fourth Proportional to 45,415.36, 68,134.56 and 14,250.88

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Solution

The fourth proportional to 45,415.36, 68,134.56 and 14,250.88 is: 21,379.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,415.36 : 68,134.56 = 14,250.88 : x
  2. Step 2: Convert to fraction form
    45,415.36/68,134.56 = 14,250.88/x
  3. Step 3: Cross multiply
    45,415.36x = 68,134.56 × 14,250.88
  4. Step 4: Simplify right side
    45,415.36x = 970,977,438.41
  5. Step 5: Solve for x
    x = 970,977,438.41/45,415.36
  6. Step 6: Final answer
    x = 21,379.93

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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.