Home / 98,541.09-135,987.73-56,102.36

Finding the Fourth Proportional to 98,541.09, 135,987.73 and 56,102.36

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Solution

The fourth proportional to 98,541.09, 135,987.73 and 56,102.36 is: 77,421.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,541.09 : 135,987.73 = 56,102.36 : x
  2. Step 2: Convert to fraction form
    98,541.09/135,987.73 = 56,102.36/x
  3. Step 3: Cross multiply
    98,541.09x = 135,987.73 × 56,102.36
  4. Step 4: Simplify right side
    98,541.09x = 7,629,231,763.85
  5. Step 5: Solve for x
    x = 7,629,231,763.85/98,541.09
  6. Step 6: Final answer
    x = 77,421.83

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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.