Home / 55,555.72-76,663.94-30,400.36

Finding the Fourth Proportional to 55,555.72, 76,663.94 and 30,400.36

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Solution

The fourth proportional to 55,555.72, 76,663.94 and 30,400.36 is: 41,950.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,555.72 : 76,663.94 = 30,400.36 : x
  2. Step 2: Convert to fraction form
    55,555.72/76,663.94 = 30,400.36/x
  3. Step 3: Cross multiply
    55,555.72x = 76,663.94 × 30,400.36
  4. Step 4: Simplify right side
    55,555.72x = 2,330,611,375.02
  5. Step 5: Solve for x
    x = 2,330,611,375.02/55,555.72
  6. Step 6: Final answer
    x = 41,950.88

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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.