Home / 56,830.25-78,425.75-31,679.75

Finding the Fourth Proportional to 56,830.25, 78,425.75 and 31,679.75

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Solution

The fourth proportional to 56,830.25, 78,425.75 and 31,679.75 is: 43,718.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,830.25 : 78,425.75 = 31,679.75 : x
  2. Step 2: Convert to fraction form
    56,830.25/78,425.75 = 31,679.75/x
  3. Step 3: Cross multiply
    56,830.25x = 78,425.75 × 31,679.75
  4. Step 4: Simplify right side
    56,830.25x = 2,484,508,153.56
  5. Step 5: Solve for x
    x = 2,484,508,153.56/56,830.25
  6. Step 6: Final answer
    x = 43,718.06

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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.