Home / 70,515.72-97,310.03-38,684.34

Finding the Fourth Proportional to 70,515.72, 97,310.03 and 38,684.34

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Solution

The fourth proportional to 70,515.72, 97,310.03 and 38,684.34 is: 53,383.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,515.72 : 97,310.03 = 38,684.34 : x
  2. Step 2: Convert to fraction form
    70,515.72/97,310.03 = 38,684.34/x
  3. Step 3: Cross multiply
    70,515.72x = 97,310.03 × 38,684.34
  4. Step 4: Simplify right side
    70,515.72x = 3,764,374,092.51
  5. Step 5: Solve for x
    x = 3,764,374,092.51/70,515.72
  6. Step 6: Final answer
    x = 53,383.47

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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.