Home / 57,348.08-79,200.32-39,489.20

Finding the Fourth Proportional to 57,348.08, 79,200.32 and 39,489.20

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Solution

The fourth proportional to 57,348.08, 79,200.32 and 39,489.20 is: 54,536.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,348.08 : 79,200.32 = 39,489.20 : x
  2. Step 2: Convert to fraction form
    57,348.08/79,200.32 = 39,489.20/x
  3. Step 3: Cross multiply
    57,348.08x = 79,200.32 × 39,489.20
  4. Step 4: Simplify right side
    57,348.08x = 3,127,557,276.54
  5. Step 5: Solve for x
    x = 3,127,557,276.54/57,348.08
  6. Step 6: Final answer
    x = 54,536.39

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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.