Home / 55,591.15-76,715.81-30,440.65

Finding the Fourth Proportional to 55,591.15, 76,715.81 and 30,440.65

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Solution

The fourth proportional to 55,591.15, 76,715.81 and 30,440.65 is: 42,008.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,591.15 : 76,715.81 = 30,440.65 : x
  2. Step 2: Convert to fraction form
    55,591.15/76,715.81 = 30,440.65/x
  3. Step 3: Cross multiply
    55,591.15x = 76,715.81 × 30,440.65
  4. Step 4: Simplify right side
    55,591.15x = 2,335,278,814.20
  5. Step 5: Solve for x
    x = 2,335,278,814.20/55,591.15
  6. Step 6: Final answer
    x = 42,008.11

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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.