Home / 65,806.02-98,719.56-21,429.36

Finding the Fourth Proportional to 65,806.02, 98,719.56 and 21,429.36

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Solution

The fourth proportional to 65,806.02, 98,719.56 and 21,429.36 is: 32,147.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,806.02 : 98,719.56 = 21,429.36 : x
  2. Step 2: Convert to fraction form
    65,806.02/98,719.56 = 21,429.36/x
  3. Step 3: Cross multiply
    65,806.02x = 98,719.56 × 21,429.36
  4. Step 4: Simplify right side
    65,806.02x = 2,115,496,990.28
  5. Step 5: Solve for x
    x = 2,115,496,990.28/65,806.02
  6. Step 6: Final answer
    x = 32,147.47

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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.