Home / 70,821.21-97,729.56-38,983.89

Finding the Fourth Proportional to 70,821.21, 97,729.56 and 38,983.89

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Solution

The fourth proportional to 70,821.21, 97,729.56 and 38,983.89 is: 53,795.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,821.21 : 97,729.56 = 38,983.89 : x
  2. Step 2: Convert to fraction form
    70,821.21/97,729.56 = 38,983.89/x
  3. Step 3: Cross multiply
    70,821.21x = 97,729.56 × 38,983.89
  4. Step 4: Simplify right side
    70,821.21x = 3,809,878,416.79
  5. Step 5: Solve for x
    x = 3,809,878,416.79/70,821.21
  6. Step 6: Final answer
    x = 53,795.73

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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.