Home / 56,851.32-78,456.96-31,705.68

Finding the Fourth Proportional to 56,851.32, 78,456.96 and 31,705.68

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Solution

The fourth proportional to 56,851.32, 78,456.96 and 31,705.68 is: 43,755.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,851.32 : 78,456.96 = 31,705.68 : x
  2. Step 2: Convert to fraction form
    56,851.32/78,456.96 = 31,705.68/x
  3. Step 3: Cross multiply
    56,851.32x = 78,456.96 × 31,705.68
  4. Step 4: Simplify right side
    56,851.32x = 2,487,531,267.53
  5. Step 5: Solve for x
    x = 2,487,531,267.53/56,851.32
  6. Step 6: Final answer
    x = 43,755.03

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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.