Home / 56,868.09-78,477.42-31,374.66

Finding the Fourth Proportional to 56,868.09, 78,477.42 and 31,374.66

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Solution

The fourth proportional to 56,868.09, 78,477.42 and 31,374.66 is: 43,296.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,868.09 : 78,477.42 = 31,374.66 : x
  2. Step 2: Convert to fraction form
    56,868.09/78,477.42 = 31,374.66/x
  3. Step 3: Cross multiply
    56,868.09x = 78,477.42 × 31,374.66
  4. Step 4: Simplify right side
    56,868.09x = 2,462,202,164.20
  5. Step 5: Solve for x
    x = 2,462,202,164.20/56,868.09
  6. Step 6: Final answer
    x = 43,296.73

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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.