Home / 64,822.40-97,039.20-38,513.60

Finding the Fourth Proportional to 64,822.40, 97,039.20 and 38,513.60

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Solution

The fourth proportional to 64,822.40, 97,039.20 and 38,513.60 is: 57,654.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,822.40 : 97,039.20 = 38,513.60 : x
  2. Step 2: Convert to fraction form
    64,822.40/97,039.20 = 38,513.60/x
  3. Step 3: Cross multiply
    64,822.40x = 97,039.20 × 38,513.60
  4. Step 4: Simplify right side
    64,822.40x = 3,737,328,933.12
  5. Step 5: Solve for x
    x = 3,737,328,933.12/64,822.40
  6. Step 6: Final answer
    x = 57,654.90

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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.