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Finding the Fourth Proportional to 65,798.25, 98,707.64 and 21,414.53

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Solution

The fourth proportional to 65,798.25, 98,707.64 and 21,414.53 is: 32,125.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,798.25 : 98,707.64 = 21,414.53 : x
  2. Step 2: Convert to fraction form
    65,798.25/98,707.64 = 21,414.53/x
  3. Step 3: Cross multiply
    65,798.25x = 98,707.64 × 21,414.53
  4. Step 4: Simplify right side
    65,798.25x = 2,113,777,117.40
  5. Step 5: Solve for x
    x = 2,113,777,117.40/65,798.25
  6. Step 6: Final answer
    x = 32,125.13

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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.