Home / 72,519.75-108,782.55-34,549.50

Finding the Fourth Proportional to 72,519.75, 108,782.55 and 34,549.50

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Solution

The fourth proportional to 72,519.75, 108,782.55 and 34,549.50 is: 51,825.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,519.75 : 108,782.55 = 34,549.50 : x
  2. Step 2: Convert to fraction form
    72,519.75/108,782.55 = 34,549.50/x
  3. Step 3: Cross multiply
    72,519.75x = 108,782.55 × 34,549.50
  4. Step 4: Simplify right side
    72,519.75x = 3,758,382,711.23
  5. Step 5: Solve for x
    x = 3,758,382,711.23/72,519.75
  6. Step 6: Final answer
    x = 51,825.64

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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.