Home / 57,146.92-85,725.99-19,702.06

Finding the Fourth Proportional to 57,146.92, 85,725.99 and 19,702.06

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Solution

The fourth proportional to 57,146.92, 85,725.99 and 19,702.06 is: 29,555.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,146.92 : 85,725.99 = 19,702.06 : x
  2. Step 2: Convert to fraction form
    57,146.92/85,725.99 = 19,702.06/x
  3. Step 3: Cross multiply
    57,146.92x = 85,725.99 × 19,702.06
  4. Step 4: Simplify right side
    57,146.92x = 1,688,978,384.22
  5. Step 5: Solve for x
    x = 1,688,978,384.22/57,146.92
  6. Step 6: Final answer
    x = 29,555.02

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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.