Home / 77,173.35-116,338.43-72,029.62

Finding the Fourth Proportional to 77,173.35, 116,338.43 and 72,029.62

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Solution

The fourth proportional to 77,173.35, 116,338.43 and 72,029.62 is: 108,584.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,173.35 : 116,338.43 = 72,029.62 : x
  2. Step 2: Convert to fraction form
    77,173.35/116,338.43 = 72,029.62/x
  3. Step 3: Cross multiply
    77,173.35x = 116,338.43 × 72,029.62
  4. Step 4: Simplify right side
    77,173.35x = 8,379,812,904.30
  5. Step 5: Solve for x
    x = 8,379,812,904.30/77,173.35
  6. Step 6: Final answer
    x = 108,584.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.