Home / 56,747.48-78,310.89-31,253.36

Finding the Fourth Proportional to 56,747.48, 78,310.89 and 31,253.36

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Solution

The fourth proportional to 56,747.48, 78,310.89 and 31,253.36 is: 43,129.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,747.48 : 78,310.89 = 31,253.36 : x
  2. Step 2: Convert to fraction form
    56,747.48/78,310.89 = 31,253.36/x
  3. Step 3: Cross multiply
    56,747.48x = 78,310.89 × 31,253.36
  4. Step 4: Simplify right side
    56,747.48x = 2,447,478,045.54
  5. Step 5: Solve for x
    x = 2,447,478,045.54/56,747.48
  6. Step 6: Final answer
    x = 43,129.29

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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.