Home / 56,663.37-78,192.36-31,511.25

Finding the Fourth Proportional to 56,663.37, 78,192.36 and 31,511.25

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Solution

The fourth proportional to 56,663.37, 78,192.36 and 31,511.25 is: 43,483.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,663.37 : 78,192.36 = 31,511.25 : x
  2. Step 2: Convert to fraction form
    56,663.37/78,192.36 = 31,511.25/x
  3. Step 3: Cross multiply
    56,663.37x = 78,192.36 × 31,511.25
  4. Step 4: Simplify right side
    56,663.37x = 2,463,939,004.05
  5. Step 5: Solve for x
    x = 2,463,939,004.05/56,663.37
  6. Step 6: Final answer
    x = 43,483.81

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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.