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Finding the Fourth Proportional to 51,999.48, 77,999.16 and 16,939.08

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Solution

The fourth proportional to 51,999.48, 77,999.16 and 16,939.08 is: 25,408.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,999.48 : 77,999.16 = 16,939.08 : x
  2. Step 2: Convert to fraction form
    51,999.48/77,999.16 = 16,939.08/x
  3. Step 3: Cross multiply
    51,999.48x = 77,999.16 × 16,939.08
  4. Step 4: Simplify right side
    51,999.48x = 1,321,234,011.17
  5. Step 5: Solve for x
    x = 1,321,234,011.17/51,999.48
  6. Step 6: Final answer
    x = 25,408.60

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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.