Home / 70,608.05-97,438.04-40,400.79

Finding the Fourth Proportional to 70,608.05, 97,438.04 and 40,400.79

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Solution

The fourth proportional to 70,608.05, 97,438.04 and 40,400.79 is: 55,752.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,608.05 : 97,438.04 = 40,400.79 : x
  2. Step 2: Convert to fraction form
    70,608.05/97,438.04 = 40,400.79/x
  3. Step 3: Cross multiply
    70,608.05x = 97,438.04 × 40,400.79
  4. Step 4: Simplify right side
    70,608.05x = 3,936,573,590.05
  5. Step 5: Solve for x
    x = 3,936,573,590.05/70,608.05
  6. Step 6: Final answer
    x = 55,752.48

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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.