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Finding the Fourth Proportional to 65,757.96, 98,627.63 and 21,385.35

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Solution

The fourth proportional to 65,757.96, 98,627.63 and 21,385.35 is: 32,075.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,757.96 : 98,627.63 = 21,385.35 : x
  2. Step 2: Convert to fraction form
    65,757.96/98,627.63 = 21,385.35/x
  3. Step 3: Cross multiply
    65,757.96x = 98,627.63 × 21,385.35
  4. Step 4: Simplify right side
    65,757.96x = 2,109,186,280.29
  5. Step 5: Solve for x
    x = 2,109,186,280.29/65,757.96
  6. Step 6: Final answer
    x = 32,075.00

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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.