Home / 48,081.30-72,125.58-13,020.36

Finding the Fourth Proportional to 48,081.30, 72,125.58 and 13,020.36

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Solution

The fourth proportional to 48,081.30, 72,125.58 and 13,020.36 is: 19,531.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,081.30 : 72,125.58 = 13,020.36 : x
  2. Step 2: Convert to fraction form
    48,081.30/72,125.58 = 13,020.36/x
  3. Step 3: Cross multiply
    48,081.30x = 72,125.58 × 13,020.36
  4. Step 4: Simplify right side
    48,081.30x = 939,101,016.81
  5. Step 5: Solve for x
    x = 939,101,016.81/48,081.30
  6. Step 6: Final answer
    x = 19,531.52

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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.