Home / 70,942.83-97,899.78-38,677.80

Finding the Fourth Proportional to 70,942.83, 97,899.78 and 38,677.80

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Solution

The fourth proportional to 70,942.83, 97,899.78 and 38,677.80 is: 53,374.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,942.83 : 97,899.78 = 38,677.80 : x
  2. Step 2: Convert to fraction form
    70,942.83/97,899.78 = 38,677.80/x
  3. Step 3: Cross multiply
    70,942.83x = 97,899.78 × 38,677.80
  4. Step 4: Simplify right side
    70,942.83x = 3,786,548,110.88
  5. Step 5: Solve for x
    x = 3,786,548,110.88/70,942.83
  6. Step 6: Final answer
    x = 53,374.64

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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.