Home / 98,456.54-135,869.67-55,436.02

Finding the Fourth Proportional to 98,456.54, 135,869.67 and 55,436.02

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Solution

The fourth proportional to 98,456.54, 135,869.67 and 55,436.02 is: 76,501.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,456.54 : 135,869.67 = 55,436.02 : x
  2. Step 2: Convert to fraction form
    98,456.54/135,869.67 = 55,436.02/x
  3. Step 3: Cross multiply
    98,456.54x = 135,869.67 × 55,436.02
  4. Step 4: Simplify right side
    98,456.54x = 7,532,073,403.84
  5. Step 5: Solve for x
    x = 7,532,073,403.84/98,456.54
  6. Step 6: Final answer
    x = 76,501.51

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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.