Home / 56,730.06-85,084.11-21,661.38

Finding the Fourth Proportional to 56,730.06, 85,084.11 and 21,661.38

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Solution

The fourth proportional to 56,730.06, 85,084.11 and 21,661.38 is: 32,487.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,730.06 : 85,084.11 = 21,661.38 : x
  2. Step 2: Convert to fraction form
    56,730.06/85,084.11 = 21,661.38/x
  3. Step 3: Cross multiply
    56,730.06x = 85,084.11 × 21,661.38
  4. Step 4: Simplify right side
    56,730.06x = 1,843,039,238.67
  5. Step 5: Solve for x
    x = 1,843,039,238.67/56,730.06
  6. Step 6: Final answer
    x = 32,487.88

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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.