Home / 55,519.16-83,279.82-20,440.76

Finding the Fourth Proportional to 55,519.16, 83,279.82 and 20,440.76

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Solution

The fourth proportional to 55,519.16, 83,279.82 and 20,440.76 is: 30,661.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,519.16 : 83,279.82 = 20,440.76 : x
  2. Step 2: Convert to fraction form
    55,519.16/83,279.82 = 20,440.76/x
  3. Step 3: Cross multiply
    55,519.16x = 83,279.82 × 20,440.76
  4. Step 4: Simplify right side
    55,519.16x = 1,702,302,813.46
  5. Step 5: Solve for x
    x = 1,702,302,813.46/55,519.16
  6. Step 6: Final answer
    x = 30,661.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.