Home / 55,661.07-76,809.42-31,783.08

Finding the Fourth Proportional to 55,661.07, 76,809.42 and 31,783.08

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Solution

The fourth proportional to 55,661.07, 76,809.42 and 31,783.08 is: 43,859.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,661.07 : 76,809.42 = 31,783.08 : x
  2. Step 2: Convert to fraction form
    55,661.07/76,809.42 = 31,783.08/x
  3. Step 3: Cross multiply
    55,661.07x = 76,809.42 × 31,783.08
  4. Step 4: Simplify right side
    55,661.07x = 2,441,239,940.61
  5. Step 5: Solve for x
    x = 2,441,239,940.61/55,661.07
  6. Step 6: Final answer
    x = 43,859.02

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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.