Home / 55,812.42-77,021.05-30,661.94

Finding the Fourth Proportional to 55,812.42, 77,021.05 and 30,661.94

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Solution

The fourth proportional to 55,812.42, 77,021.05 and 30,661.94 is: 42,313.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,812.42 : 77,021.05 = 30,661.94 : x
  2. Step 2: Convert to fraction form
    55,812.42/77,021.05 = 30,661.94/x
  3. Step 3: Cross multiply
    55,812.42x = 77,021.05 × 30,661.94
  4. Step 4: Simplify right side
    55,812.42x = 2,361,614,813.84
  5. Step 5: Solve for x
    x = 2,361,614,813.84/55,812.42
  6. Step 6: Final answer
    x = 42,313.43

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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.