Home / 56,717.63-85,128.96-28,657.43

Finding the Fourth Proportional to 56,717.63, 85,128.96 and 28,657.43

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Solution

The fourth proportional to 56,717.63, 85,128.96 and 28,657.43 is: 43,012.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,717.63 : 85,128.96 = 28,657.43 : x
  2. Step 2: Convert to fraction form
    56,717.63/85,128.96 = 28,657.43/x
  3. Step 3: Cross multiply
    56,717.63x = 85,128.96 × 28,657.43
  4. Step 4: Simplify right side
    56,717.63x = 2,439,577,212.17
  5. Step 5: Solve for x
    x = 2,439,577,212.17/56,717.63
  6. Step 6: Final answer
    x = 43,012.68

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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.