Home / 70,387.42-97,137.75-40,180.90

Finding the Fourth Proportional to 70,387.42, 97,137.75 and 40,180.90

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Solution

The fourth proportional to 70,387.42, 97,137.75 and 40,180.90 is: 55,451.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,387.42 : 97,137.75 = 40,180.90 : x
  2. Step 2: Convert to fraction form
    70,387.42/97,137.75 = 40,180.90/x
  3. Step 3: Cross multiply
    70,387.42x = 97,137.75 × 40,180.90
  4. Step 4: Simplify right side
    70,387.42x = 3,903,082,218.98
  5. Step 5: Solve for x
    x = 3,903,082,218.98/70,387.42
  6. Step 6: Final answer
    x = 55,451.42

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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.