Home / 70,986.93-97,962.05-40,778.10

Finding the Fourth Proportional to 70,986.93, 97,962.05 and 40,778.10

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Solution

The fourth proportional to 70,986.93, 97,962.05 and 40,778.10 is: 56,273.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,986.93 : 97,962.05 = 40,778.10 : x
  2. Step 2: Convert to fraction form
    70,986.93/97,962.05 = 40,778.10/x
  3. Step 3: Cross multiply
    70,986.93x = 97,962.05 × 40,778.10
  4. Step 4: Simplify right side
    70,986.93x = 3,994,706,067.21
  5. Step 5: Solve for x
    x = 3,994,706,067.21/70,986.93
  6. Step 6: Final answer
    x = 56,273.82

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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.