Home / 65,453.13-98,176.96-21,078.90

Finding the Fourth Proportional to 65,453.13, 98,176.96 and 21,078.90

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Solution

The fourth proportional to 65,453.13, 98,176.96 and 21,078.90 is: 31,617.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,453.13 : 98,176.96 = 21,078.90 : x
  2. Step 2: Convert to fraction form
    65,453.13/98,176.96 = 21,078.90/x
  3. Step 3: Cross multiply
    65,453.13x = 98,176.96 × 21,078.90
  4. Step 4: Simplify right side
    65,453.13x = 2,069,462,322.14
  5. Step 5: Solve for x
    x = 2,069,462,322.14/65,453.13
  6. Step 6: Final answer
    x = 31,617.47

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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.