Home / 70,161.88-96,823.36-39,945.64

Finding the Fourth Proportional to 70,161.88, 96,823.36 and 39,945.64

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Solution

The fourth proportional to 70,161.88, 96,823.36 and 39,945.64 is: 55,124.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,161.88 : 96,823.36 = 39,945.64 : x
  2. Step 2: Convert to fraction form
    70,161.88/96,823.36 = 39,945.64/x
  3. Step 3: Cross multiply
    70,161.88x = 96,823.36 × 39,945.64
  4. Step 4: Simplify right side
    70,161.88x = 3,867,671,082.15
  5. Step 5: Solve for x
    x = 3,867,671,082.15/70,161.88
  6. Step 6: Final answer
    x = 55,124.96

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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.