Home / 65,107.20-97,725.60-31,864.80

Finding the Fourth Proportional to 65,107.20, 97,725.60 and 31,864.80

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Solution

The fourth proportional to 65,107.20, 97,725.60 and 31,864.80 is: 47,828.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,107.20 : 97,725.60 = 31,864.80 : x
  2. Step 2: Convert to fraction form
    65,107.20/97,725.60 = 31,864.80/x
  3. Step 3: Cross multiply
    65,107.20x = 97,725.60 × 31,864.80
  4. Step 4: Simplify right side
    65,107.20x = 3,114,006,698.88
  5. Step 5: Solve for x
    x = 3,114,006,698.88/65,107.20
  6. Step 6: Final answer
    x = 47,828.91

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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.