Home / 56,882.15-78,497.31-31,388.51

Finding the Fourth Proportional to 56,882.15, 78,497.31 and 31,388.51

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Solution

The fourth proportional to 56,882.15, 78,497.31 and 31,388.51 is: 43,316.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,882.15 : 78,497.31 = 31,388.51 : x
  2. Step 2: Convert to fraction form
    56,882.15/78,497.31 = 31,388.51/x
  3. Step 3: Cross multiply
    56,882.15x = 78,497.31 × 31,388.51
  4. Step 4: Simplify right side
    56,882.15x = 2,463,913,796.15
  5. Step 5: Solve for x
    x = 2,463,913,796.15/56,882.15
  6. Step 6: Final answer
    x = 43,316.11

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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.