Home / 65,770.35-98,725.23-53,439.21

Finding the Fourth Proportional to 65,770.35, 98,725.23 and 53,439.21

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Solution

The fourth proportional to 65,770.35, 98,725.23 and 53,439.21 is: 80,215.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,770.35 : 98,725.23 = 53,439.21 : x
  2. Step 2: Convert to fraction form
    65,770.35/98,725.23 = 53,439.21/x
  3. Step 3: Cross multiply
    65,770.35x = 98,725.23 × 53,439.21
  4. Step 4: Simplify right side
    65,770.35x = 5,275,798,298.27
  5. Step 5: Solve for x
    x = 5,275,798,298.27/65,770.35
  6. Step 6: Final answer
    x = 80,215.45

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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.