Home / 55,579.72-76,700.02-30,429.22

Finding the Fourth Proportional to 55,579.72, 76,700.02 and 30,429.22

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Solution

The fourth proportional to 55,579.72, 76,700.02 and 30,429.22 is: 41,992.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,579.72 : 76,700.02 = 30,429.22 : x
  2. Step 2: Convert to fraction form
    55,579.72/76,700.02 = 30,429.22/x
  3. Step 3: Cross multiply
    55,579.72x = 76,700.02 × 30,429.22
  4. Step 4: Simplify right side
    55,579.72x = 2,333,921,782.58
  5. Step 5: Solve for x
    x = 2,333,921,782.58/55,579.72
  6. Step 6: Final answer
    x = 41,992.33

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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.