Home / 56,424.47-84,610.17-20,861.28

Finding the Fourth Proportional to 56,424.47, 84,610.17 and 20,861.28

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Solution

The fourth proportional to 56,424.47, 84,610.17 and 20,861.28 is: 31,282.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,424.47 : 84,610.17 = 20,861.28 : x
  2. Step 2: Convert to fraction form
    56,424.47/84,610.17 = 20,861.28/x
  3. Step 3: Cross multiply
    56,424.47x = 84,610.17 × 20,861.28
  4. Step 4: Simplify right side
    56,424.47x = 1,765,076,447.22
  5. Step 5: Solve for x
    x = 1,765,076,447.22/56,424.47
  6. Step 6: Final answer
    x = 31,282.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.