Home / 65,988.78-98,998.20-21,614.55

Finding the Fourth Proportional to 65,988.78, 98,998.20 and 21,614.55

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Solution

The fourth proportional to 65,988.78, 98,998.20 and 21,614.55 is: 32,426.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,988.78 : 98,998.20 = 21,614.55 : x
  2. Step 2: Convert to fraction form
    65,988.78/98,998.20 = 21,614.55/x
  3. Step 3: Cross multiply
    65,988.78x = 98,998.20 × 21,614.55
  4. Step 4: Simplify right side
    65,988.78x = 2,139,801,172.57
  5. Step 5: Solve for x
    x = 2,139,801,172.57/65,988.78
  6. Step 6: Final answer
    x = 32,426.74

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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.