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Finding the Fourth Proportional to 45,280.78, 62,480.78 and 25,137.80

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Solution

The fourth proportional to 45,280.78, 62,480.78 and 25,137.80 is: 34,686.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,280.78 : 62,480.78 = 25,137.80 : x
  2. Step 2: Convert to fraction form
    45,280.78/62,480.78 = 25,137.80/x
  3. Step 3: Cross multiply
    45,280.78x = 62,480.78 × 25,137.80
  4. Step 4: Simplify right side
    45,280.78x = 1,570,629,351.48
  5. Step 5: Solve for x
    x = 1,570,629,351.48/45,280.78
  6. Step 6: Final answer
    x = 34,686.45

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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.