Home / 56,729.81-85,083.73-21,661.13

Finding the Fourth Proportional to 56,729.81, 85,083.73 and 21,661.13

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Solution

The fourth proportional to 56,729.81, 85,083.73 and 21,661.13 is: 32,487.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,729.81 : 85,083.73 = 21,661.13 : x
  2. Step 2: Convert to fraction form
    56,729.81/85,083.73 = 21,661.13/x
  3. Step 3: Cross multiply
    56,729.81x = 85,083.73 × 21,661.13
  4. Step 4: Simplify right side
    56,729.81x = 1,843,009,736.41
  5. Step 5: Solve for x
    x = 1,843,009,736.41/56,729.81
  6. Step 6: Final answer
    x = 32,487.50

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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.