Home / 72,913.75-100,620.98-39,379.75

Finding the Fourth Proportional to 72,913.75, 100,620.98 and 39,379.75

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Solution

The fourth proportional to 72,913.75, 100,620.98 and 39,379.75 is: 54,344.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,913.75 : 100,620.98 = 39,379.75 : x
  2. Step 2: Convert to fraction form
    72,913.75/100,620.98 = 39,379.75/x
  3. Step 3: Cross multiply
    72,913.75x = 100,620.98 × 39,379.75
  4. Step 4: Simplify right side
    72,913.75x = 3,962,429,037.16
  5. Step 5: Solve for x
    x = 3,962,429,037.16/72,913.75
  6. Step 6: Final answer
    x = 54,344.06

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1.5x scale

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.