Home / 56,758.57-85,113.26-19,308.59

Finding the Fourth Proportional to 56,758.57, 85,113.26 and 19,308.59

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Solution

The fourth proportional to 56,758.57, 85,113.26 and 19,308.59 is: 28,954.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,758.57 : 85,113.26 = 19,308.59 : x
  2. Step 2: Convert to fraction form
    56,758.57/85,113.26 = 19,308.59/x
  3. Step 3: Cross multiply
    56,758.57x = 85,113.26 × 19,308.59
  4. Step 4: Simplify right side
    56,758.57x = 1,643,416,975.76
  5. Step 5: Solve for x
    x = 1,643,416,975.76/56,758.57
  6. Step 6: Final answer
    x = 28,954.52

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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.