Home / 55,609-76,741.68-31,735.20

Finding the Fourth Proportional to 55,609, 76,741.68 and 31,735.20

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Solution

The fourth proportional to 55,609, 76,741.68 and 31,735.20 is: 43,795.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,609 : 76,741.68 = 31,735.20 : x
  2. Step 2: Convert to fraction form
    55,609/76,741.68 = 31,735.20/x
  3. Step 3: Cross multiply
    55,609x = 76,741.68 × 31,735.20
  4. Step 4: Simplify right side
    55,609x = 2,435,412,563.14
  5. Step 5: Solve for x
    x = 2,435,412,563.14/55,609
  6. Step 6: Final answer
    x = 43,795.30

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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.