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Finding the Fourth Proportional to 45,502.88, 68,254.05 and 11,768.90

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Solution

The fourth proportional to 45,502.88, 68,254.05 and 11,768.90 is: 17,653.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,502.88 : 68,254.05 = 11,768.90 : x
  2. Step 2: Convert to fraction form
    45,502.88/68,254.05 = 11,768.90/x
  3. Step 3: Cross multiply
    45,502.88x = 68,254.05 × 11,768.90
  4. Step 4: Simplify right side
    45,502.88x = 803,275,089.05
  5. Step 5: Solve for x
    x = 803,275,089.05/45,502.88
  6. Step 6: Final answer
    x = 17,653.28

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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.