Home / 55,609.12-76,738.08-30,458.08

Finding the Fourth Proportional to 55,609.12, 76,738.08 and 30,458.08

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Solution

The fourth proportional to 55,609.12, 76,738.08 and 30,458.08 is: 42,030.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,609.12 : 76,738.08 = 30,458.08 : x
  2. Step 2: Convert to fraction form
    55,609.12/76,738.08 = 30,458.08/x
  3. Step 3: Cross multiply
    55,609.12x = 76,738.08 × 30,458.08
  4. Step 4: Simplify right side
    55,609.12x = 2,337,294,579.69
  5. Step 5: Solve for x
    x = 2,337,294,579.69/55,609.12
  6. Step 6: Final answer
    x = 42,030.78

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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.