Home / 56,998.31-78,661.73-31,504.13

Finding the Fourth Proportional to 56,998.31, 78,661.73 and 31,504.13

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Solution

The fourth proportional to 56,998.31, 78,661.73 and 31,504.13 is: 43,477.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,998.31 : 78,661.73 = 31,504.13 : x
  2. Step 2: Convert to fraction form
    56,998.31/78,661.73 = 31,504.13/x
  3. Step 3: Cross multiply
    56,998.31x = 78,661.73 × 31,504.13
  4. Step 4: Simplify right side
    56,998.31x = 2,478,169,367.94
  5. Step 5: Solve for x
    x = 2,478,169,367.94/56,998.31
  6. Step 6: Final answer
    x = 43,477.94

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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.