Home / 55,885.44-77,120.64-30,735.36

Finding the Fourth Proportional to 55,885.44, 77,120.64 and 30,735.36

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Solution

The fourth proportional to 55,885.44, 77,120.64 and 30,735.36 is: 42,414.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,885.44 : 77,120.64 = 30,735.36 : x
  2. Step 2: Convert to fraction form
    55,885.44/77,120.64 = 30,735.36/x
  3. Step 3: Cross multiply
    55,885.44x = 77,120.64 × 30,735.36
  4. Step 4: Simplify right side
    55,885.44x = 2,370,330,633.83
  5. Step 5: Solve for x
    x = 2,370,330,633.83/55,885.44
  6. Step 6: Final answer
    x = 42,414.10

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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.