Home / 56,736.32-78,295.46-31,242.15

Finding the Fourth Proportional to 56,736.32, 78,295.46 and 31,242.15

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Solution

The fourth proportional to 56,736.32, 78,295.46 and 31,242.15 is: 43,113.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,736.32 : 78,295.46 = 31,242.15 : x
  2. Step 2: Convert to fraction form
    56,736.32/78,295.46 = 31,242.15/x
  3. Step 3: Cross multiply
    56,736.32x = 78,295.46 × 31,242.15
  4. Step 4: Simplify right side
    56,736.32x = 2,446,118,349.43
  5. Step 5: Solve for x
    x = 2,446,118,349.43/56,736.32
  6. Step 6: Final answer
    x = 43,113.80

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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.