Home / 55,686.50-76,847.38-30,536.54

Finding the Fourth Proportional to 55,686.50, 76,847.38 and 30,536.54

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Solution

The fourth proportional to 55,686.50, 76,847.38 and 30,536.54 is: 42,140.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,686.50 : 76,847.38 = 30,536.54 : x
  2. Step 2: Convert to fraction form
    55,686.50/76,847.38 = 30,536.54/x
  3. Step 3: Cross multiply
    55,686.50x = 76,847.38 × 30,536.54
  4. Step 4: Simplify right side
    55,686.50x = 2,346,653,093.27
  5. Step 5: Solve for x
    x = 2,346,653,093.27/55,686.50
  6. Step 6: Final answer
    x = 42,140.43

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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.