Home / 51,532.89-71,129.39-30,318.99

Finding the Fourth Proportional to 51,532.89, 71,129.39 and 30,318.99

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Solution

The fourth proportional to 51,532.89, 71,129.39 and 30,318.99 is: 41,848.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,532.89 : 71,129.39 = 30,318.99 : x
  2. Step 2: Convert to fraction form
    51,532.89/71,129.39 = 30,318.99/x
  3. Step 3: Cross multiply
    51,532.89x = 71,129.39 × 30,318.99
  4. Step 4: Simplify right side
    51,532.89x = 2,156,571,112.52
  5. Step 5: Solve for x
    x = 2,156,571,112.52/51,532.89
  6. Step 6: Final answer
    x = 41,848.44

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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.