Home / 70,138.46-96,791.68-39,925.72

Finding the Fourth Proportional to 70,138.46, 96,791.68 and 39,925.72

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Solution

The fourth proportional to 70,138.46, 96,791.68 and 39,925.72 is: 55,097.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,138.46 : 96,791.68 = 39,925.72 : x
  2. Step 2: Convert to fraction form
    70,138.46/96,791.68 = 39,925.72/x
  3. Step 3: Cross multiply
    70,138.46x = 96,791.68 × 39,925.72
  4. Step 4: Simplify right side
    70,138.46x = 3,864,477,514.01
  5. Step 5: Solve for x
    x = 3,864,477,514.01/70,138.46
  6. Step 6: Final answer
    x = 55,097.84

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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.