Home / 56,388.78-77,813.15-31,236.46

Finding the Fourth Proportional to 56,388.78, 77,813.15 and 31,236.46

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Solution

The fourth proportional to 56,388.78, 77,813.15 and 31,236.46 is: 43,104.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,388.78 : 77,813.15 = 31,236.46 : x
  2. Step 2: Convert to fraction form
    56,388.78/77,813.15 = 31,236.46/x
  3. Step 3: Cross multiply
    56,388.78x = 77,813.15 × 31,236.46
  4. Step 4: Simplify right side
    56,388.78x = 2,430,607,347.45
  5. Step 5: Solve for x
    x = 2,430,607,347.45/56,388.78
  6. Step 6: Final answer
    x = 43,104.45

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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.