Home / 57,012.66-78,699.42-51,033.78

Finding the Fourth Proportional to 57,012.66, 78,699.42 and 51,033.78

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Solution

The fourth proportional to 57,012.66, 78,699.42 and 51,033.78 is: 70,446.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,012.66 : 78,699.42 = 51,033.78 : x
  2. Step 2: Convert to fraction form
    57,012.66/78,699.42 = 51,033.78/x
  3. Step 3: Cross multiply
    57,012.66x = 78,699.42 × 51,033.78
  4. Step 4: Simplify right side
    57,012.66x = 4,016,328,886.41
  5. Step 5: Solve for x
    x = 4,016,328,886.41/57,012.66
  6. Step 6: Final answer
    x = 70,446.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.