Home / 70,310.03-97,027.77-39,689.57

Finding the Fourth Proportional to 70,310.03, 97,027.77 and 39,689.57

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Solution

The fourth proportional to 70,310.03, 97,027.77 and 39,689.57 is: 54,771.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,310.03 : 97,027.77 = 39,689.57 : x
  2. Step 2: Convert to fraction form
    70,310.03/97,027.77 = 39,689.57/x
  3. Step 3: Cross multiply
    70,310.03x = 97,027.77 × 39,689.57
  4. Step 4: Simplify right side
    70,310.03x = 3,850,990,469.36
  5. Step 5: Solve for x
    x = 3,850,990,469.36/70,310.03
  6. Step 6: Final answer
    x = 54,771.57

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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.