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Finding the Fourth Proportional to 45,485.40, 68,228.10 and 15,893.40

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Solution

The fourth proportional to 45,485.40, 68,228.10 and 15,893.40 is: 23,840.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,485.40 : 68,228.10 = 15,893.40 : x
  2. Step 2: Convert to fraction form
    45,485.40/68,228.10 = 15,893.40/x
  3. Step 3: Cross multiply
    45,485.40x = 68,228.10 × 15,893.40
  4. Step 4: Simplify right side
    45,485.40x = 1,084,376,484.54
  5. Step 5: Solve for x
    x = 1,084,376,484.54/45,485.40
  6. Step 6: Final answer
    x = 23,840.10

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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.