Home / 55,628.76-76,767.78-30,135.42

Finding the Fourth Proportional to 55,628.76, 76,767.78 and 30,135.42

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Solution

The fourth proportional to 55,628.76, 76,767.78 and 30,135.42 is: 41,586.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,628.76 : 76,767.78 = 30,135.42 : x
  2. Step 2: Convert to fraction form
    55,628.76/76,767.78 = 30,135.42/x
  3. Step 3: Cross multiply
    55,628.76x = 76,767.78 × 30,135.42
  4. Step 4: Simplify right side
    55,628.76x = 2,313,429,292.77
  5. Step 5: Solve for x
    x = 2,313,429,292.77/55,628.76
  6. Step 6: Final answer
    x = 41,586.93

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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.