Home / 65,801.25-98,712.09-21,417.57

Finding the Fourth Proportional to 65,801.25, 98,712.09 and 21,417.57

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Solution

The fourth proportional to 65,801.25, 98,712.09 and 21,417.57 is: 32,129.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,801.25 : 98,712.09 = 21,417.57 : x
  2. Step 2: Convert to fraction form
    65,801.25/98,712.09 = 21,417.57/x
  3. Step 3: Cross multiply
    65,801.25x = 98,712.09 × 21,417.57
  4. Step 4: Simplify right side
    65,801.25x = 2,114,173,097.42
  5. Step 5: Solve for x
    x = 2,114,173,097.42/65,801.25
  6. Step 6: Final answer
    x = 32,129.68

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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.