Home / 65,772.20-98,664.08-18,387.81

Finding the Fourth Proportional to 65,772.20, 98,664.08 and 18,387.81

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Solution

The fourth proportional to 65,772.20, 98,664.08 and 18,387.81 is: 27,583.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,772.20 : 98,664.08 = 18,387.81 : x
  2. Step 2: Convert to fraction form
    65,772.20/98,664.08 = 18,387.81/x
  3. Step 3: Cross multiply
    65,772.20x = 98,664.08 × 18,387.81
  4. Step 4: Simplify right side
    65,772.20x = 1,814,216,264.93
  5. Step 5: Solve for x
    x = 1,814,216,264.93/65,772.20
  6. Step 6: Final answer
    x = 27,583.33

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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.