Home / 56,125.12-77,452-30,974.08

Finding the Fourth Proportional to 56,125.12, 77,452 and 30,974.08

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Solution

The fourth proportional to 56,125.12, 77,452 and 30,974.08 is: 42,743.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,125.12 : 77,452 = 30,974.08 : x
  2. Step 2: Convert to fraction form
    56,125.12/77,452 = 30,974.08/x
  3. Step 3: Cross multiply
    56,125.12x = 77,452 × 30,974.08
  4. Step 4: Simplify right side
    56,125.12x = 2,399,004,444.16
  5. Step 5: Solve for x
    x = 2,399,004,444.16/56,125.12
  6. Step 6: Final answer
    x = 42,743.86

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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.