Home / 72,409.14-99,931.73-41,783.85

Finding the Fourth Proportional to 72,409.14, 99,931.73 and 41,783.85

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Solution

The fourth proportional to 72,409.14, 99,931.73 and 41,783.85 is: 57,665.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,409.14 : 99,931.73 = 41,783.85 : x
  2. Step 2: Convert to fraction form
    72,409.14/99,931.73 = 41,783.85/x
  3. Step 3: Cross multiply
    72,409.14x = 99,931.73 × 41,783.85
  4. Step 4: Simplify right side
    72,409.14x = 4,175,532,207.64
  5. Step 5: Solve for x
    x = 4,175,532,207.64/72,409.14
  6. Step 6: Final answer
    x = 57,665.82

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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.