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Finding the Fourth Proportional to 45,273.57, 67,868.79 and 15,670.71

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Solution

The fourth proportional to 45,273.57, 67,868.79 and 15,670.71 is: 23,491.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,273.57 : 67,868.79 = 15,670.71 : x
  2. Step 2: Convert to fraction form
    45,273.57/67,868.79 = 15,670.71/x
  3. Step 3: Cross multiply
    45,273.57x = 67,868.79 × 15,670.71
  4. Step 4: Simplify right side
    45,273.57x = 1,063,552,126.14
  5. Step 5: Solve for x
    x = 1,063,552,126.14/45,273.57
  6. Step 6: Final answer
    x = 23,491.68

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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.