Home / 79,928.10-119,809.53-29,972.97

Finding the Fourth Proportional to 79,928.10, 119,809.53 and 29,972.97

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Solution

The fourth proportional to 79,928.10, 119,809.53 and 29,972.97 is: 44,928.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,928.10 : 119,809.53 = 29,972.97 : x
  2. Step 2: Convert to fraction form
    79,928.10/119,809.53 = 29,972.97/x
  3. Step 3: Cross multiply
    79,928.10x = 119,809.53 × 29,972.97
  4. Step 4: Simplify right side
    79,928.10x = 3,591,047,448.40
  5. Step 5: Solve for x
    x = 3,591,047,448.40/79,928.10
  6. Step 6: Final answer
    x = 44,928.47

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1.5x scale

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.