Home / 56,725.75-85,127.51-19,789.75

Finding the Fourth Proportional to 56,725.75, 85,127.51 and 19,789.75

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Solution

The fourth proportional to 56,725.75, 85,127.51 and 19,789.75 is: 29,698.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,725.75 : 85,127.51 = 19,789.75 : x
  2. Step 2: Convert to fraction form
    56,725.75/85,127.51 = 19,789.75/x
  3. Step 3: Cross multiply
    56,725.75x = 85,127.51 × 19,789.75
  4. Step 4: Simplify right side
    56,725.75x = 1,684,652,141.02
  5. Step 5: Solve for x
    x = 1,684,652,141.02/56,725.75
  6. Step 6: Final answer
    x = 29,698.19

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1.5x scale

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.