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Finding the Fourth Proportional to 56,795.76, 78,377.76 and 31,645.44

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Solution

The fourth proportional to 56,795.76, 78,377.76 and 31,645.44 is: 43,670.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,795.76 : 78,377.76 = 31,645.44 : x
  2. Step 2: Convert to fraction form
    56,795.76/78,377.76 = 31,645.44/x
  3. Step 3: Cross multiply
    56,795.76x = 78,377.76 × 31,645.44
  4. Step 4: Simplify right side
    56,795.76x = 2,480,298,701.41
  5. Step 5: Solve for x
    x = 2,480,298,701.41/56,795.76
  6. Step 6: Final answer
    x = 43,670.49

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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.