Home / 57,388.32-85,952.64-30,687.15

Finding the Fourth Proportional to 57,388.32, 85,952.64 and 30,687.15

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Solution

The fourth proportional to 57,388.32, 85,952.64 and 30,687.15 is: 45,961.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,388.32 : 85,952.64 = 30,687.15 : x
  2. Step 2: Convert to fraction form
    57,388.32/85,952.64 = 30,687.15/x
  3. Step 3: Cross multiply
    57,388.32x = 85,952.64 × 30,687.15
  4. Step 4: Simplify right side
    57,388.32x = 2,637,641,556.58
  5. Step 5: Solve for x
    x = 2,637,641,556.58/57,388.32
  6. Step 6: Final answer
    x = 45,961.30

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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.