Home / 56,634.65-78,155.87-31,141.44

Finding the Fourth Proportional to 56,634.65, 78,155.87 and 31,141.44

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Solution

The fourth proportional to 56,634.65, 78,155.87 and 31,141.44 is: 42,975.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,634.65 : 78,155.87 = 31,141.44 : x
  2. Step 2: Convert to fraction form
    56,634.65/78,155.87 = 31,141.44/x
  3. Step 3: Cross multiply
    56,634.65x = 78,155.87 × 31,141.44
  4. Step 4: Simplify right side
    56,634.65x = 2,433,886,180.55
  5. Step 5: Solve for x
    x = 2,433,886,180.55/56,634.65
  6. Step 6: Final answer
    x = 42,975.22

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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.