Home / 55,509.42-76,603.60-30,358.38

Finding the Fourth Proportional to 55,509.42, 76,603.60 and 30,358.38

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Solution

The fourth proportional to 55,509.42, 76,603.60 and 30,358.38 is: 41,894.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,509.42 : 76,603.60 = 30,358.38 : x
  2. Step 2: Convert to fraction form
    55,509.42/76,603.60 = 30,358.38/x
  3. Step 3: Cross multiply
    55,509.42x = 76,603.60 × 30,358.38
  4. Step 4: Simplify right side
    55,509.42x = 2,325,560,815.15
  5. Step 5: Solve for x
    x = 2,325,560,815.15/55,509.42
  6. Step 6: Final answer
    x = 41,894.89

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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.