Home / 56,908.11-78,537.54-31,419.39

Finding the Fourth Proportional to 56,908.11, 78,537.54 and 31,419.39

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Solution

The fourth proportional to 56,908.11, 78,537.54 and 31,419.39 is: 43,361.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,908.11 : 78,537.54 = 31,419.39 : x
  2. Step 2: Convert to fraction form
    56,908.11/78,537.54 = 31,419.39/x
  3. Step 3: Cross multiply
    56,908.11x = 78,537.54 × 31,419.39
  4. Step 4: Simplify right side
    56,908.11x = 2,467,601,598.90
  5. Step 5: Solve for x
    x = 2,467,601,598.90/56,908.11
  6. Step 6: Final answer
    x = 43,361.16

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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.