Home / 73,131.20-109,826.40-56,531.60

Finding the Fourth Proportional to 73,131.20, 109,826.40 and 56,531.60

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Solution

The fourth proportional to 73,131.20, 109,826.40 and 56,531.60 is: 84,897.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,131.20 : 109,826.40 = 56,531.60 : x
  2. Step 2: Convert to fraction form
    73,131.20/109,826.40 = 56,531.60/x
  3. Step 3: Cross multiply
    73,131.20x = 109,826.40 × 56,531.60
  4. Step 4: Simplify right side
    73,131.20x = 6,208,662,114.24
  5. Step 5: Solve for x
    x = 6,208,662,114.24/73,131.20
  6. Step 6: Final answer
    x = 84,897.58

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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.