Home / 98,319.03-135,663.49-55,287.37

Finding the Fourth Proportional to 98,319.03, 135,663.49 and 55,287.37

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Solution

The fourth proportional to 98,319.03, 135,663.49 and 55,287.37 is: 76,287.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,319.03 : 135,663.49 = 55,287.37 : x
  2. Step 2: Convert to fraction form
    98,319.03/135,663.49 = 55,287.37/x
  3. Step 3: Cross multiply
    98,319.03x = 135,663.49 × 55,287.37
  4. Step 4: Simplify right side
    98,319.03x = 7,500,477,567.12
  5. Step 5: Solve for x
    x = 7,500,477,567.12/98,319.03
  6. Step 6: Final answer
    x = 76,287.14

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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.