Home / 72,325.89-99,818.26-40,488.64

Finding the Fourth Proportional to 72,325.89, 99,818.26 and 40,488.64

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Solution

The fourth proportional to 72,325.89, 99,818.26 and 40,488.64 is: 55,879.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,325.89 : 99,818.26 = 40,488.64 : x
  2. Step 2: Convert to fraction form
    72,325.89/99,818.26 = 40,488.64/x
  3. Step 3: Cross multiply
    72,325.89x = 99,818.26 × 40,488.64
  4. Step 4: Simplify right side
    72,325.89x = 4,041,505,243.80
  5. Step 5: Solve for x
    x = 4,041,505,243.80/72,325.89
  6. Step 6: Final answer
    x = 55,879.09

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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.