Home / 77,732.40-116,591.88-47,329.68

Finding the Fourth Proportional to 77,732.40, 116,591.88 and 47,329.68

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Solution

The fourth proportional to 77,732.40, 116,591.88 and 47,329.68 is: 70,990.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,732.40 : 116,591.88 = 47,329.68 : x
  2. Step 2: Convert to fraction form
    77,732.40/116,591.88 = 47,329.68/x
  3. Step 3: Cross multiply
    77,732.40x = 116,591.88 × 47,329.68
  4. Step 4: Simplify right side
    77,732.40x = 5,518,256,371.00
  5. Step 5: Solve for x
    x = 5,518,256,371.00/77,732.40
  6. Step 6: Final answer
    x = 70,990.43

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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.