Home / 51,443.14-77,178.57-21,447.40

Finding the Fourth Proportional to 51,443.14, 77,178.57 and 21,447.40

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Solution

The fourth proportional to 51,443.14, 77,178.57 and 21,447.40 is: 32,176.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,443.14 : 77,178.57 = 21,447.40 : x
  2. Step 2: Convert to fraction form
    51,443.14/77,178.57 = 21,447.40/x
  3. Step 3: Cross multiply
    51,443.14x = 77,178.57 × 21,447.40
  4. Step 4: Simplify right side
    51,443.14x = 1,655,279,662.22
  5. Step 5: Solve for x
    x = 1,655,279,662.22/51,443.14
  6. Step 6: Final answer
    x = 32,176.88

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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.