Home / 65,943.40-98,913.96-20,964.56

Finding the Fourth Proportional to 65,943.40, 98,913.96 and 20,964.56

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Solution

The fourth proportional to 65,943.40, 98,913.96 and 20,964.56 is: 31,446.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,943.40 : 98,913.96 = 20,964.56 : x
  2. Step 2: Convert to fraction form
    65,943.40/98,913.96 = 20,964.56/x
  3. Step 3: Cross multiply
    65,943.40x = 98,913.96 × 20,964.56
  4. Step 4: Simplify right side
    65,943.40x = 2,073,687,649.26
  5. Step 5: Solve for x
    x = 2,073,687,649.26/65,943.40
  6. Step 6: Final answer
    x = 31,446.48

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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.