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Finding the Fourth Proportional to 65,493.68, 98,240.44 and 21,127.04

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Solution

The fourth proportional to 65,493.68, 98,240.44 and 21,127.04 is: 31,690.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,493.68 : 98,240.44 = 21,127.04 : x
  2. Step 2: Convert to fraction form
    65,493.68/98,240.44 = 21,127.04/x
  3. Step 3: Cross multiply
    65,493.68x = 98,240.44 × 21,127.04
  4. Step 4: Simplify right side
    65,493.68x = 2,075,529,705.50
  5. Step 5: Solve for x
    x = 2,075,529,705.50/65,493.68
  6. Step 6: Final answer
    x = 31,690.53

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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.