Home / 51,453.87-77,178.47-21,455.73

Finding the Fourth Proportional to 51,453.87, 77,178.47 and 21,455.73

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Solution

The fourth proportional to 51,453.87, 77,178.47 and 21,455.73 is: 32,182.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,453.87 : 77,178.47 = 21,455.73 : x
  2. Step 2: Convert to fraction form
    51,453.87/77,178.47 = 21,455.73/x
  3. Step 3: Cross multiply
    51,453.87x = 77,178.47 × 21,455.73
  4. Step 4: Simplify right side
    51,453.87x = 1,655,920,306.85
  5. Step 5: Solve for x
    x = 1,655,920,306.85/51,453.87
  6. Step 6: Final answer
    x = 32,182.62

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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.