Home / 53,077.12-79,528.20-30,828.04

Finding the Fourth Proportional to 53,077.12, 79,528.20 and 30,828.04

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Solution

The fourth proportional to 53,077.12, 79,528.20 and 30,828.04 is: 46,191.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,077.12 : 79,528.20 = 30,828.04 : x
  2. Step 2: Convert to fraction form
    53,077.12/79,528.20 = 30,828.04/x
  3. Step 3: Cross multiply
    53,077.12x = 79,528.20 × 30,828.04
  4. Step 4: Simplify right side
    53,077.12x = 2,451,698,530.73
  5. Step 5: Solve for x
    x = 2,451,698,530.73/53,077.12
  6. Step 6: Final answer
    x = 46,191.25

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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.