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Finding the Fourth Proportional to 55,118.96, 76,064.32 and 29,968.32

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Solution

The fourth proportional to 55,118.96, 76,064.32 and 29,968.32 is: 41,356.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,118.96 : 76,064.32 = 29,968.32 : x
  2. Step 2: Convert to fraction form
    55,118.96/76,064.32 = 29,968.32/x
  3. Step 3: Cross multiply
    55,118.96x = 76,064.32 × 29,968.32
  4. Step 4: Simplify right side
    55,118.96x = 2,279,519,882.34
  5. Step 5: Solve for x
    x = 2,279,519,882.34/55,118.96
  6. Step 6: Final answer
    x = 41,356.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.