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Finding the Fourth Proportional to 45,400.59, 68,055.70 and 21,680.41

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Solution

The fourth proportional to 45,400.59, 68,055.70 and 21,680.41 is: 32,499.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,400.59 : 68,055.70 = 21,680.41 : x
  2. Step 2: Convert to fraction form
    45,400.59/68,055.70 = 21,680.41/x
  3. Step 3: Cross multiply
    45,400.59x = 68,055.70 × 21,680.41
  4. Step 4: Simplify right side
    45,400.59x = 1,475,475,483.73
  5. Step 5: Solve for x
    x = 1,475,475,483.73/45,400.59
  6. Step 6: Final answer
    x = 32,499.04

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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.