Home / 89,236.07-123,149.64-53,419.16

Finding the Fourth Proportional to 89,236.07, 123,149.64 and 53,419.16

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Solution

The fourth proportional to 89,236.07, 123,149.64 and 53,419.16 is: 73,720.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,236.07 : 123,149.64 = 53,419.16 : x
  2. Step 2: Convert to fraction form
    89,236.07/123,149.64 = 53,419.16/x
  3. Step 3: Cross multiply
    89,236.07x = 123,149.64 × 53,419.16
  4. Step 4: Simplify right side
    89,236.07x = 6,578,549,707.35
  5. Step 5: Solve for x
    x = 6,578,549,707.35/89,236.07
  6. Step 6: Final answer
    x = 73,720.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.