Home / 48,187.72-72,282.54-13,128.28

Finding the Fourth Proportional to 48,187.72, 72,282.54 and 13,128.28

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Solution

The fourth proportional to 48,187.72, 72,282.54 and 13,128.28 is: 19,692.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,187.72 : 72,282.54 = 13,128.28 : x
  2. Step 2: Convert to fraction form
    48,187.72/72,282.54 = 13,128.28/x
  3. Step 3: Cross multiply
    48,187.72x = 72,282.54 × 13,128.28
  4. Step 4: Simplify right side
    48,187.72x = 948,945,424.23
  5. Step 5: Solve for x
    x = 948,945,424.23/48,187.72
  6. Step 6: Final answer
    x = 19,692.68

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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.