Home / 72,015.11-99,398.64-43,744.49

Finding the Fourth Proportional to 72,015.11, 99,398.64 and 43,744.49

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Solution

The fourth proportional to 72,015.11, 99,398.64 and 43,744.49 is: 60,378.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,015.11 : 99,398.64 = 43,744.49 : x
  2. Step 2: Convert to fraction form
    72,015.11/99,398.64 = 43,744.49/x
  3. Step 3: Cross multiply
    72,015.11x = 99,398.64 × 43,744.49
  4. Step 4: Simplify right side
    72,015.11x = 4,348,142,316.50
  5. Step 5: Solve for x
    x = 4,348,142,316.50/72,015.11
  6. Step 6: Final answer
    x = 60,378.20

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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.