Home / 72,063.56-99,457.68-40,234.52

Finding the Fourth Proportional to 72,063.56, 99,457.68 and 40,234.52

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Solution

The fourth proportional to 72,063.56, 99,457.68 and 40,234.52 is: 55,529.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,063.56 : 99,457.68 = 40,234.52 : x
  2. Step 2: Convert to fraction form
    72,063.56/99,457.68 = 40,234.52/x
  3. Step 3: Cross multiply
    72,063.56x = 99,457.68 × 40,234.52
  4. Step 4: Simplify right side
    72,063.56x = 4,001,632,015.11
  5. Step 5: Solve for x
    x = 4,001,632,015.11/72,063.56
  6. Step 6: Final answer
    x = 55,529.20

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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.