Home / 55,410.16-76,447.05-31,530.86

Finding the Fourth Proportional to 55,410.16, 76,447.05 and 31,530.86

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Solution

The fourth proportional to 55,410.16, 76,447.05 and 31,530.86 is: 43,501.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,410.16 : 76,447.05 = 31,530.86 : x
  2. Step 2: Convert to fraction form
    55,410.16/76,447.05 = 31,530.86/x
  3. Step 3: Cross multiply
    55,410.16x = 76,447.05 × 31,530.86
  4. Step 4: Simplify right side
    55,410.16x = 2,410,441,230.96
  5. Step 5: Solve for x
    x = 2,410,441,230.96/55,410.16
  6. Step 6: Final answer
    x = 43,501.79

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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.