Home / 65,680.24-98,534.21-21,303.54

Finding the Fourth Proportional to 65,680.24, 98,534.21 and 21,303.54

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Solution

The fourth proportional to 65,680.24, 98,534.21 and 21,303.54 is: 31,959.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,680.24 : 98,534.21 = 21,303.54 : x
  2. Step 2: Convert to fraction form
    65,680.24/98,534.21 = 21,303.54/x
  3. Step 3: Cross multiply
    65,680.24x = 98,534.21 × 21,303.54
  4. Step 4: Simplify right side
    65,680.24x = 2,099,127,377.59
  5. Step 5: Solve for x
    x = 2,099,127,377.59/65,680.24
  6. Step 6: Final answer
    x = 31,959.80

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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.