Home / 79,763.78-119,618.94-40,295.72

Finding the Fourth Proportional to 79,763.78, 119,618.94 and 40,295.72

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Solution

The fourth proportional to 79,763.78, 119,618.94 and 40,295.72 is: 60,430.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,763.78 : 119,618.94 = 40,295.72 : x
  2. Step 2: Convert to fraction form
    79,763.78/119,618.94 = 40,295.72/x
  3. Step 3: Cross multiply
    79,763.78x = 119,618.94 × 40,295.72
  4. Step 4: Simplify right side
    79,763.78x = 4,820,131,312.94
  5. Step 5: Solve for x
    x = 4,820,131,312.94/79,763.78
  6. Step 6: Final answer
    x = 60,430.08

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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.