Home / 64,937.20-97,335.84-31,679.68

Finding the Fourth Proportional to 64,937.20, 97,335.84 and 31,679.68

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Solution

The fourth proportional to 64,937.20, 97,335.84 and 31,679.68 is: 47,485.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,937.20 : 97,335.84 = 31,679.68 : x
  2. Step 2: Convert to fraction form
    64,937.20/97,335.84 = 31,679.68/x
  3. Step 3: Cross multiply
    64,937.20x = 97,335.84 × 31,679.68
  4. Step 4: Simplify right side
    64,937.20x = 3,083,568,263.73
  5. Step 5: Solve for x
    x = 3,083,568,263.73/64,937.20
  6. Step 6: Final answer
    x = 47,485.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.