Home / 45,618.72-68,435.40-14,446.80

Finding the Fourth Proportional to 45,618.72, 68,435.40 and 14,446.80

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Solution

The fourth proportional to 45,618.72, 68,435.40 and 14,446.80 is: 21,672.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,618.72 : 68,435.40 = 14,446.80 : x
  2. Step 2: Convert to fraction form
    45,618.72/68,435.40 = 14,446.80/x
  3. Step 3: Cross multiply
    45,618.72x = 68,435.40 × 14,446.80
  4. Step 4: Simplify right side
    45,618.72x = 988,672,536.72
  5. Step 5: Solve for x
    x = 988,672,536.72/45,618.72
  6. Step 6: Final answer
    x = 21,672.52

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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.