Home / 56,398.48-77,816.19-31,247.98

Finding the Fourth Proportional to 56,398.48, 77,816.19 and 31,247.98

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Solution

The fourth proportional to 56,398.48, 77,816.19 and 31,247.98 is: 43,114.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,398.48 : 77,816.19 = 31,247.98 : x
  2. Step 2: Convert to fraction form
    56,398.48/77,816.19 = 31,247.98/x
  3. Step 3: Cross multiply
    56,398.48x = 77,816.19 × 31,247.98
  4. Step 4: Simplify right side
    56,398.48x = 2,431,598,671.44
  5. Step 5: Solve for x
    x = 2,431,598,671.44/56,398.48
  6. Step 6: Final answer
    x = 43,114.62

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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.