Home / 65,824.24-98,742.36-21,439.60

Finding the Fourth Proportional to 65,824.24, 98,742.36 and 21,439.60

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Solution

The fourth proportional to 65,824.24, 98,742.36 and 21,439.60 is: 32,161.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,824.24 : 98,742.36 = 21,439.60 : x
  2. Step 2: Convert to fraction form
    65,824.24/98,742.36 = 21,439.60/x
  3. Step 3: Cross multiply
    65,824.24x = 98,742.36 × 21,439.60
  4. Step 4: Simplify right side
    65,824.24x = 2,116,996,701.46
  5. Step 5: Solve for x
    x = 2,116,996,701.46/65,824.24
  6. Step 6: Final answer
    x = 32,161.35

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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.