Home / 56,578.94-78,079.04-31,428.44

Finding the Fourth Proportional to 56,578.94, 78,079.04 and 31,428.44

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Solution

The fourth proportional to 56,578.94, 78,079.04 and 31,428.44 is: 43,371.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,578.94 : 78,079.04 = 31,428.44 : x
  2. Step 2: Convert to fraction form
    56,578.94/78,079.04 = 31,428.44/x
  3. Step 3: Cross multiply
    56,578.94x = 78,079.04 × 31,428.44
  4. Step 4: Simplify right side
    56,578.94x = 2,453,902,423.90
  5. Step 5: Solve for x
    x = 2,453,902,423.90/56,578.94
  6. Step 6: Final answer
    x = 43,371.30

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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.