Home / 55,623.31-76,759.72-30,129.09

Finding the Fourth Proportional to 55,623.31, 76,759.72 and 30,129.09

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Solution

The fourth proportional to 55,623.31, 76,759.72 and 30,129.09 is: 41,577.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,623.31 : 76,759.72 = 30,129.09 : x
  2. Step 2: Convert to fraction form
    55,623.31/76,759.72 = 30,129.09/x
  3. Step 3: Cross multiply
    55,623.31x = 76,759.72 × 30,129.09
  4. Step 4: Simplify right side
    55,623.31x = 2,312,699,977.81
  5. Step 5: Solve for x
    x = 2,312,699,977.81/55,623.31
  6. Step 6: Final answer
    x = 41,577.89

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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.