Home / 97,716.40-146,530.80-38,521.60

Finding the Fourth Proportional to 97,716.40, 146,530.80 and 38,521.60

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Solution

The fourth proportional to 97,716.40, 146,530.80 and 38,521.60 is: 57,765.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,716.40 : 146,530.80 = 38,521.60 : x
  2. Step 2: Convert to fraction form
    97,716.40/146,530.80 = 38,521.60/x
  3. Step 3: Cross multiply
    97,716.40x = 146,530.80 × 38,521.60
  4. Step 4: Simplify right side
    97,716.40x = 5,644,600,865.28
  5. Step 5: Solve for x
    x = 5,644,600,865.28/97,716.40
  6. Step 6: Final answer
    x = 57,765.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.