Home / 65,981.39-98,963.10-21,602.84

Finding the Fourth Proportional to 65,981.39, 98,963.10 and 21,602.84

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Solution

The fourth proportional to 65,981.39, 98,963.10 and 21,602.84 is: 32,401.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,981.39 : 98,963.10 = 21,602.84 : x
  2. Step 2: Convert to fraction form
    65,981.39/98,963.10 = 21,602.84/x
  3. Step 3: Cross multiply
    65,981.39x = 98,963.10 × 21,602.84
  4. Step 4: Simplify right side
    65,981.39x = 2,137,883,520.39
  5. Step 5: Solve for x
    x = 2,137,883,520.39/65,981.39
  6. Step 6: Final answer
    x = 32,401.31

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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.