Home / 56,277.94-77,664.07-30,783.80

Finding the Fourth Proportional to 56,277.94, 77,664.07 and 30,783.80

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Solution

The fourth proportional to 56,277.94, 77,664.07 and 30,783.80 is: 42,481.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,277.94 : 77,664.07 = 30,783.80 : x
  2. Step 2: Convert to fraction form
    56,277.94/77,664.07 = 30,783.80/x
  3. Step 3: Cross multiply
    56,277.94x = 77,664.07 × 30,783.80
  4. Step 4: Simplify right side
    56,277.94x = 2,390,795,198.07
  5. Step 5: Solve for x
    x = 2,390,795,198.07/56,277.94
  6. Step 6: Final answer
    x = 42,481.92

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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.