Home / 55,917-77,165.46-30,765.96

Finding the Fourth Proportional to 55,917, 77,165.46 and 30,765.96

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Solution

The fourth proportional to 55,917, 77,165.46 and 30,765.96 is: 42,457.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,917 : 77,165.46 = 30,765.96 : x
  2. Step 2: Convert to fraction form
    55,917/77,165.46 = 30,765.96/x
  3. Step 3: Cross multiply
    55,917x = 77,165.46 × 30,765.96
  4. Step 4: Simplify right side
    55,917x = 2,374,069,455.74
  5. Step 5: Solve for x
    x = 2,374,069,455.74/55,917
  6. Step 6: Final answer
    x = 42,457.02

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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.