Home / 55,631.92-76,771-30,481.24

Finding the Fourth Proportional to 55,631.92, 76,771 and 30,481.24

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Solution

The fourth proportional to 55,631.92, 76,771 and 30,481.24 is: 42,063.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,631.92 : 76,771 = 30,481.24 : x
  2. Step 2: Convert to fraction form
    55,631.92/76,771 = 30,481.24/x
  3. Step 3: Cross multiply
    55,631.92x = 76,771 × 30,481.24
  4. Step 4: Simplify right side
    55,631.92x = 2,340,075,276.04
  5. Step 5: Solve for x
    x = 2,340,075,276.04/55,631.92
  6. Step 6: Final answer
    x = 42,063.54

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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.