Home / 56,997.31-78,660.35-31,503.13

Finding the Fourth Proportional to 56,997.31, 78,660.35 and 31,503.13

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Solution

The fourth proportional to 56,997.31, 78,660.35 and 31,503.13 is: 43,476.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,997.31 : 78,660.35 = 31,503.13 : x
  2. Step 2: Convert to fraction form
    56,997.31/78,660.35 = 31,503.13/x
  3. Step 3: Cross multiply
    56,997.31x = 78,660.35 × 31,503.13
  4. Step 4: Simplify right side
    56,997.31x = 2,478,047,114.00
  5. Step 5: Solve for x
    x = 2,478,047,114.00/56,997.31
  6. Step 6: Final answer
    x = 43,476.56

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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.