Home / 65,611.58-98,432.99-21,238.34

Finding the Fourth Proportional to 65,611.58, 98,432.99 and 21,238.34

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Solution

The fourth proportional to 65,611.58, 98,432.99 and 21,238.34 is: 31,862.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,611.58 : 98,432.99 = 21,238.34 : x
  2. Step 2: Convert to fraction form
    65,611.58/98,432.99 = 21,238.34/x
  3. Step 3: Cross multiply
    65,611.58x = 98,432.99 × 21,238.34
  4. Step 4: Simplify right side
    65,611.58x = 2,090,553,308.84
  5. Step 5: Solve for x
    x = 2,090,553,308.84/65,611.58
  6. Step 6: Final answer
    x = 31,862.57

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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.