Home / 65,782.28-98,685.59-20,814.95

Finding the Fourth Proportional to 65,782.28, 98,685.59 and 20,814.95

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Solution

The fourth proportional to 65,782.28, 98,685.59 and 20,814.95 is: 31,226.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,782.28 : 98,685.59 = 20,814.95 : x
  2. Step 2: Convert to fraction form
    65,782.28/98,685.59 = 20,814.95/x
  3. Step 3: Cross multiply
    65,782.28x = 98,685.59 × 20,814.95
  4. Step 4: Simplify right side
    65,782.28x = 2,054,135,621.57
  5. Step 5: Solve for x
    x = 2,054,135,621.57/65,782.28
  6. Step 6: Final answer
    x = 31,226.28

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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.