Home / 79,927.75-119,925.65-30,000.57

Finding the Fourth Proportional to 79,927.75, 119,925.65 and 30,000.57

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Solution

The fourth proportional to 79,927.75, 119,925.65 and 30,000.57 is: 45,013.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,927.75 : 119,925.65 = 30,000.57 : x
  2. Step 2: Convert to fraction form
    79,927.75/119,925.65 = 30,000.57/x
  3. Step 3: Cross multiply
    79,927.75x = 119,925.65 × 30,000.57
  4. Step 4: Simplify right side
    79,927.75x = 3,597,837,857.62
  5. Step 5: Solve for x
    x = 3,597,837,857.62/79,927.75
  6. Step 6: Final answer
    x = 45,013.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.