Home / 55,074.78-76,004.85-38,970.96

Finding the Fourth Proportional to 55,074.78, 76,004.85 and 38,970.96

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Solution

The fourth proportional to 55,074.78, 76,004.85 and 38,970.96 is: 53,781.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,074.78 : 76,004.85 = 38,970.96 : x
  2. Step 2: Convert to fraction form
    55,074.78/76,004.85 = 38,970.96/x
  3. Step 3: Cross multiply
    55,074.78x = 76,004.85 × 38,970.96
  4. Step 4: Simplify right side
    55,074.78x = 2,961,981,969.16
  5. Step 5: Solve for x
    x = 2,961,981,969.16/55,074.78
  6. Step 6: Final answer
    x = 53,781.09

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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.