Home / 97,869.96-135,056.03-55,428.80

Finding the Fourth Proportional to 97,869.96, 135,056.03 and 55,428.80

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Solution

The fourth proportional to 97,869.96, 135,056.03 and 55,428.80 is: 76,489.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,869.96 : 135,056.03 = 55,428.80 : x
  2. Step 2: Convert to fraction form
    97,869.96/135,056.03 = 55,428.80/x
  3. Step 3: Cross multiply
    97,869.96x = 135,056.03 × 55,428.80
  4. Step 4: Simplify right side
    97,869.96x = 7,485,992,723.24
  5. Step 5: Solve for x
    x = 7,485,992,723.24/97,869.96
  6. Step 6: Final answer
    x = 76,489.18

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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.