Home / 56,717.44-78,268.80-31,569.28

Finding the Fourth Proportional to 56,717.44, 78,268.80 and 31,569.28

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Solution

The fourth proportional to 56,717.44, 78,268.80 and 31,569.28 is: 43,564.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,717.44 : 78,268.80 = 31,569.28 : x
  2. Step 2: Convert to fraction form
    56,717.44/78,268.80 = 31,569.28/x
  3. Step 3: Cross multiply
    56,717.44x = 78,268.80 × 31,569.28
  4. Step 4: Simplify right side
    56,717.44x = 2,470,889,662.46
  5. Step 5: Solve for x
    x = 2,470,889,662.46/56,717.44
  6. Step 6: Final answer
    x = 43,564.90

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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.