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Finding the Fourth Proportional to 55,805.00, 76,989.08 and 31,918.91

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Solution

The fourth proportional to 55,805.00, 76,989.08 and 31,918.91 is: 44,035.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,805.00 : 76,989.08 = 31,918.91 : x
  2. Step 2: Convert to fraction form
    55,805.00/76,989.08 = 31,918.91/x
  3. Step 3: Cross multiply
    55,805.00x = 76,989.08 × 31,918.91
  4. Step 4: Simplify right side
    55,805.00x = 2,457,407,210.35
  5. Step 5: Solve for x
    x = 2,457,407,210.35/55,805.00
  6. Step 6: Final answer
    x = 44,035.61

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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.