Home / 56,379.56-84,579.10-18,943.28

Finding the Fourth Proportional to 56,379.56, 84,579.10 and 18,943.28

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Solution

The fourth proportional to 56,379.56, 84,579.10 and 18,943.28 is: 28,418.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,379.56 : 84,579.10 = 18,943.28 : x
  2. Step 2: Convert to fraction form
    56,379.56/84,579.10 = 18,943.28/x
  3. Step 3: Cross multiply
    56,379.56x = 84,579.10 × 18,943.28
  4. Step 4: Simplify right side
    56,379.56x = 1,602,205,526.92
  5. Step 5: Solve for x
    x = 1,602,205,526.92/56,379.56
  6. Step 6: Final answer
    x = 28,418.20

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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.