Home / 72,983.04-100,716.53-39,449.04

Finding the Fourth Proportional to 72,983.04, 100,716.53 and 39,449.04

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Solution

The fourth proportional to 72,983.04, 100,716.53 and 39,449.04 is: 54,439.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,983.04 : 100,716.53 = 39,449.04 : x
  2. Step 2: Convert to fraction form
    72,983.04/100,716.53 = 39,449.04/x
  3. Step 3: Cross multiply
    72,983.04x = 100,716.53 × 39,449.04
  4. Step 4: Simplify right side
    72,983.04x = 3,973,170,420.63
  5. Step 5: Solve for x
    x = 3,973,170,420.63/72,983.04
  6. Step 6: Final answer
    x = 54,439.64

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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.