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Finding the Fourth Proportional to 70,982.63, 97,955.63 and 39,151.45

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Solution

The fourth proportional to 70,982.63, 97,955.63 and 39,151.45 is: 54,028.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,982.63 : 97,955.63 = 39,151.45 : x
  2. Step 2: Convert to fraction form
    70,982.63/97,955.63 = 39,151.45/x
  3. Step 3: Cross multiply
    70,982.63x = 97,955.63 × 39,151.45
  4. Step 4: Simplify right side
    70,982.63x = 3,835,105,023.67
  5. Step 5: Solve for x
    x = 3,835,105,023.67/70,982.63
  6. Step 6: Final answer
    x = 54,028.78

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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.