Home / 52,709.70-72,736.29-28,831.62

Finding the Fourth Proportional to 52,709.70, 72,736.29 and 28,831.62

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Solution

The fourth proportional to 52,709.70, 72,736.29 and 28,831.62 is: 39,785.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,709.70 : 72,736.29 = 28,831.62 : x
  2. Step 2: Convert to fraction form
    52,709.70/72,736.29 = 28,831.62/x
  3. Step 3: Cross multiply
    52,709.70x = 72,736.29 × 28,831.62
  4. Step 4: Simplify right side
    52,709.70x = 2,097,105,073.49
  5. Step 5: Solve for x
    x = 2,097,105,073.49/52,709.70
  6. Step 6: Final answer
    x = 39,785.94

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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.