Home / 56,659.77-78,188.90-31,166.12

Finding the Fourth Proportional to 56,659.77, 78,188.90 and 31,166.12

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Solution

The fourth proportional to 56,659.77, 78,188.90 and 31,166.12 is: 43,008.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,659.77 : 78,188.90 = 31,166.12 : x
  2. Step 2: Convert to fraction form
    56,659.77/78,188.90 = 31,166.12/x
  3. Step 3: Cross multiply
    56,659.77x = 78,188.90 × 31,166.12
  4. Step 4: Simplify right side
    56,659.77x = 2,436,844,239.90
  5. Step 5: Solve for x
    x = 2,436,844,239.90/56,659.77
  6. Step 6: Final answer
    x = 43,008.37

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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.