Home / 72,298.66-99,771.11-40,030.19

Finding the Fourth Proportional to 72,298.66, 99,771.11 and 40,030.19

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Solution

The fourth proportional to 72,298.66, 99,771.11 and 40,030.19 is: 55,241.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,298.66 : 99,771.11 = 40,030.19 : x
  2. Step 2: Convert to fraction form
    72,298.66/99,771.11 = 40,030.19/x
  3. Step 3: Cross multiply
    72,298.66x = 99,771.11 × 40,030.19
  4. Step 4: Simplify right side
    72,298.66x = 3,993,856,489.81
  5. Step 5: Solve for x
    x = 3,993,856,489.81/72,298.66
  6. Step 6: Final answer
    x = 55,241.09

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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.