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Finding the Fourth Proportional to 53,379.67, 80,042.29 and 17,828.20

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Solution

The fourth proportional to 53,379.67, 80,042.29 and 17,828.20 is: 26,733.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,379.67 : 80,042.29 = 17,828.20 : x
  2. Step 2: Convert to fraction form
    53,379.67/80,042.29 = 17,828.20/x
  3. Step 3: Cross multiply
    53,379.67x = 80,042.29 × 17,828.20
  4. Step 4: Simplify right side
    53,379.67x = 1,427,009,954.58
  5. Step 5: Solve for x
    x = 1,427,009,954.58/53,379.67
  6. Step 6: Final answer
    x = 26,733.21

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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.