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Finding the Fourth Proportional to 63,728.40, 95,477.40 and 54,512.40

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Solution

The fourth proportional to 63,728.40, 95,477.40 and 54,512.40 is: 81,670.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,728.40 : 95,477.40 = 54,512.40 : x
  2. Step 2: Convert to fraction form
    63,728.40/95,477.40 = 54,512.40/x
  3. Step 3: Cross multiply
    63,728.40x = 95,477.40 × 54,512.40
  4. Step 4: Simplify right side
    63,728.40x = 5,204,702,219.76
  5. Step 5: Solve for x
    x = 5,204,702,219.76/63,728.40
  6. Step 6: Final answer
    x = 81,670.06

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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.