Home / 98,289.36-135,634.20-55,842

Finding the Fourth Proportional to 98,289.36, 135,634.20 and 55,842

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Solution

The fourth proportional to 98,289.36, 135,634.20 and 55,842 is: 77,059.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,289.36 : 135,634.20 = 55,842 : x
  2. Step 2: Convert to fraction form
    98,289.36/135,634.20 = 55,842/x
  3. Step 3: Cross multiply
    98,289.36x = 135,634.20 × 55,842
  4. Step 4: Simplify right side
    98,289.36x = 7,574,084,996.40
  5. Step 5: Solve for x
    x = 7,574,084,996.40/98,289.36
  6. Step 6: Final answer
    x = 77,059.05

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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.