Home / 55,825.52-77,039.20-30,676.64

Finding the Fourth Proportional to 55,825.52, 77,039.20 and 30,676.64

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Solution

The fourth proportional to 55,825.52, 77,039.20 and 30,676.64 is: 42,333.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,825.52 : 77,039.20 = 30,676.64 : x
  2. Step 2: Convert to fraction form
    55,825.52/77,039.20 = 30,676.64/x
  3. Step 3: Cross multiply
    55,825.52x = 77,039.20 × 30,676.64
  4. Step 4: Simplify right side
    55,825.52x = 2,363,303,804.29
  5. Step 5: Solve for x
    x = 2,363,303,804.29/55,825.52
  6. Step 6: Final answer
    x = 42,333.75

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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.