Home / 55,655.94-76,810.74-31,786.21

Finding the Fourth Proportional to 55,655.94, 76,810.74 and 31,786.21

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Solution

The fourth proportional to 55,655.94, 76,810.74 and 31,786.21 is: 43,868.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,655.94 : 76,810.74 = 31,786.21 : x
  2. Step 2: Convert to fraction form
    55,655.94/76,810.74 = 31,786.21/x
  3. Step 3: Cross multiply
    55,655.94x = 76,810.74 × 31,786.21
  4. Step 4: Simplify right side
    55,655.94x = 2,441,522,288.71
  5. Step 5: Solve for x
    x = 2,441,522,288.71/55,655.94
  6. Step 6: Final answer
    x = 43,868.13

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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.