Home / 72,232.80-99,680.69-40,401.68

Finding the Fourth Proportional to 72,232.80, 99,680.69 and 40,401.68

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Solution

The fourth proportional to 72,232.80, 99,680.69 and 40,401.68 is: 55,753.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,232.80 : 99,680.69 = 40,401.68 : x
  2. Step 2: Convert to fraction form
    72,232.80/99,680.69 = 40,401.68/x
  3. Step 3: Cross multiply
    72,232.80x = 99,680.69 × 40,401.68
  4. Step 4: Simplify right side
    72,232.80x = 4,027,266,942.16
  5. Step 5: Solve for x
    x = 4,027,266,942.16/72,232.80
  6. Step 6: Final answer
    x = 55,753.99

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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.