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Finding the Fourth Proportional to 45,601.20, 68,401.80 and 25,918.20

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Solution

The fourth proportional to 45,601.20, 68,401.80 and 25,918.20 is: 38,877.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,601.20 : 68,401.80 = 25,918.20 : x
  2. Step 2: Convert to fraction form
    45,601.20/68,401.80 = 25,918.20/x
  3. Step 3: Cross multiply
    45,601.20x = 68,401.80 × 25,918.20
  4. Step 4: Simplify right side
    45,601.20x = 1,772,851,532.76
  5. Step 5: Solve for x
    x = 1,772,851,532.76/45,601.20
  6. Step 6: Final answer
    x = 38,877.30

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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.