Home / 56,422.74-84,633.30-18,991.02

Finding the Fourth Proportional to 56,422.74, 84,633.30 and 18,991.02

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Solution

The fourth proportional to 56,422.74, 84,633.30 and 18,991.02 is: 28,486.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,422.74 : 84,633.30 = 18,991.02 : x
  2. Step 2: Convert to fraction form
    56,422.74/84,633.30 = 18,991.02/x
  3. Step 3: Cross multiply
    56,422.74x = 84,633.30 × 18,991.02
  4. Step 4: Simplify right side
    56,422.74x = 1,607,272,692.97
  5. Step 5: Solve for x
    x = 1,607,272,692.97/56,422.74
  6. Step 6: Final answer
    x = 28,486.26

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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.