Home / 65,680.32-98,534.33-21,303.62

Finding the Fourth Proportional to 65,680.32, 98,534.33 and 21,303.62

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Solution

The fourth proportional to 65,680.32, 98,534.33 and 21,303.62 is: 31,959.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,680.32 : 98,534.33 = 21,303.62 : x
  2. Step 2: Convert to fraction form
    65,680.32/98,534.33 = 21,303.62/x
  3. Step 3: Cross multiply
    65,680.32x = 98,534.33 × 21,303.62
  4. Step 4: Simplify right side
    65,680.32x = 2,099,137,816.76
  5. Step 5: Solve for x
    x = 2,099,137,816.76/65,680.32
  6. Step 6: Final answer
    x = 31,959.92

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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.