Home / 98,111.82-135,420.19-57,852.39

Finding the Fourth Proportional to 98,111.82, 135,420.19 and 57,852.39

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Solution

The fourth proportional to 98,111.82, 135,420.19 and 57,852.39 is: 79,851.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,111.82 : 135,420.19 = 57,852.39 : x
  2. Step 2: Convert to fraction form
    98,111.82/135,420.19 = 57,852.39/x
  3. Step 3: Cross multiply
    98,111.82x = 135,420.19 × 57,852.39
  4. Step 4: Simplify right side
    98,111.82x = 7,834,381,501.12
  5. Step 5: Solve for x
    x = 7,834,381,501.12/98,111.82
  6. Step 6: Final answer
    x = 79,851.56

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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.