Home / 70,911.39-97,859.78-39,082.35

Finding the Fourth Proportional to 70,911.39, 97,859.78 and 39,082.35

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Solution

The fourth proportional to 70,911.39, 97,859.78 and 39,082.35 is: 53,934.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,911.39 : 97,859.78 = 39,082.35 : x
  2. Step 2: Convert to fraction form
    70,911.39/97,859.78 = 39,082.35/x
  3. Step 3: Cross multiply
    70,911.39x = 97,859.78 × 39,082.35
  4. Step 4: Simplify right side
    70,911.39x = 3,824,590,172.88
  5. Step 5: Solve for x
    x = 3,824,590,172.88/70,911.39
  6. Step 6: Final answer
    x = 53,934.78

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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.