Home / 65,730.24-98,596.80-21,357

Finding the Fourth Proportional to 65,730.24, 98,596.80 and 21,357

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Solution

The fourth proportional to 65,730.24, 98,596.80 and 21,357 is: 32,035.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,730.24 : 98,596.80 = 21,357 : x
  2. Step 2: Convert to fraction form
    65,730.24/98,596.80 = 21,357/x
  3. Step 3: Cross multiply
    65,730.24x = 98,596.80 × 21,357
  4. Step 4: Simplify right side
    65,730.24x = 2,105,731,857.60
  5. Step 5: Solve for x
    x = 2,105,731,857.60/65,730.24
  6. Step 6: Final answer
    x = 32,035.97

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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.