Home / 98,543.27-135,989.69-53,221.25

Finding the Fourth Proportional to 98,543.27, 135,989.69 and 53,221.25

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Solution

The fourth proportional to 98,543.27, 135,989.69 and 53,221.25 is: 73,445.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,543.27 : 135,989.69 = 53,221.25 : x
  2. Step 2: Convert to fraction form
    98,543.27/135,989.69 = 53,221.25/x
  3. Step 3: Cross multiply
    98,543.27x = 135,989.69 × 53,221.25
  4. Step 4: Simplify right side
    98,543.27x = 7,237,540,342.86
  5. Step 5: Solve for x
    x = 7,237,540,342.86/98,543.27
  6. Step 6: Final answer
    x = 73,445.31

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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.