Home / 55,161.89-76,123.74-30,011.57

Finding the Fourth Proportional to 55,161.89, 76,123.74 and 30,011.57

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Solution

The fourth proportional to 55,161.89, 76,123.74 and 30,011.57 is: 41,416.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,161.89 : 76,123.74 = 30,011.57 : x
  2. Step 2: Convert to fraction form
    55,161.89/76,123.74 = 30,011.57/x
  3. Step 3: Cross multiply
    55,161.89x = 76,123.74 × 30,011.57
  4. Step 4: Simplify right side
    55,161.89x = 2,284,592,571.05
  5. Step 5: Solve for x
    x = 2,284,592,571.05/55,161.89
  6. Step 6: Final answer
    x = 41,416.14

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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.