Home / 56,618.20-78,130.96-31,469.32

Finding the Fourth Proportional to 56,618.20, 78,130.96 and 31,469.32

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Solution

The fourth proportional to 56,618.20, 78,130.96 and 31,469.32 is: 43,426.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,618.20 : 78,130.96 = 31,469.32 : x
  2. Step 2: Convert to fraction form
    56,618.20/78,130.96 = 31,469.32/x
  3. Step 3: Cross multiply
    56,618.20x = 78,130.96 × 31,469.32
  4. Step 4: Simplify right side
    56,618.20x = 2,458,728,182.15
  5. Step 5: Solve for x
    x = 2,458,728,182.15/56,618.20
  6. Step 6: Final answer
    x = 43,426.46

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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.