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Finding the Fourth Proportional to 45,203.78, 67,810.23 and 11,926.15

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Solution

The fourth proportional to 45,203.78, 67,810.23 and 11,926.15 is: 17,890.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,203.78 : 67,810.23 = 11,926.15 : x
  2. Step 2: Convert to fraction form
    45,203.78/67,810.23 = 11,926.15/x
  3. Step 3: Cross multiply
    45,203.78x = 67,810.23 × 11,926.15
  4. Step 4: Simplify right side
    45,203.78x = 808,714,575.83
  5. Step 5: Solve for x
    x = 808,714,575.83/45,203.78
  6. Step 6: Final answer
    x = 17,890.42

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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.