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Finding the Fourth Proportional to 65,469.87, 98,210.47 and 18,084.95

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Solution

The fourth proportional to 65,469.87, 98,210.47 and 18,084.95 is: 27,128.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,469.87 : 98,210.47 = 18,084.95 : x
  2. Step 2: Convert to fraction form
    65,469.87/98,210.47 = 18,084.95/x
  3. Step 3: Cross multiply
    65,469.87x = 98,210.47 × 18,084.95
  4. Step 4: Simplify right side
    65,469.87x = 1,776,131,254.50
  5. Step 5: Solve for x
    x = 1,776,131,254.50/65,469.87
  6. Step 6: Final answer
    x = 27,128.99

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1.5x scale

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.