Home / 97,912.48-135,119.76-57,628

Finding the Fourth Proportional to 97,912.48, 135,119.76 and 57,628

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Solution

The fourth proportional to 97,912.48, 135,119.76 and 57,628 is: 79,526.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,912.48 : 135,119.76 = 57,628 : x
  2. Step 2: Convert to fraction form
    97,912.48/135,119.76 = 57,628/x
  3. Step 3: Cross multiply
    97,912.48x = 135,119.76 × 57,628
  4. Step 4: Simplify right side
    97,912.48x = 7,786,681,529.28
  5. Step 5: Solve for x
    x = 7,786,681,529.28/97,912.48
  6. Step 6: Final answer
    x = 79,526.96

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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.