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Finding the Fourth Proportional to 56,179.49, 84,269.56 and 18,739.47

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Solution

The fourth proportional to 56,179.49, 84,269.56 and 18,739.47 is: 28,109.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,179.49 : 84,269.56 = 18,739.47 : x
  2. Step 2: Convert to fraction form
    56,179.49/84,269.56 = 18,739.47/x
  3. Step 3: Cross multiply
    56,179.49x = 84,269.56 × 18,739.47
  4. Step 4: Simplify right side
    56,179.49x = 1,579,166,470.19
  5. Step 5: Solve for x
    x = 1,579,166,470.19/56,179.49
  6. Step 6: Final answer
    x = 28,109.31

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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.