Home / 56,456.25-77,909.63-31,305.75

Finding the Fourth Proportional to 56,456.25, 77,909.63 and 31,305.75

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Solution

The fourth proportional to 56,456.25, 77,909.63 and 31,305.75 is: 43,201.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,456.25 : 77,909.63 = 31,305.75 : x
  2. Step 2: Convert to fraction form
    56,456.25/77,909.63 = 31,305.75/x
  3. Step 3: Cross multiply
    56,456.25x = 77,909.63 × 31,305.75
  4. Step 4: Simplify right side
    56,456.25x = 2,439,019,242.84
  5. Step 5: Solve for x
    x = 2,439,019,242.84/56,456.25
  6. Step 6: Final answer
    x = 43,201.94

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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.