Home / 77,867.76-116,816.20-36,314.76

Finding the Fourth Proportional to 77,867.76, 116,816.20 and 36,314.76

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Solution

The fourth proportional to 77,867.76, 116,816.20 and 36,314.76 is: 54,478.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,867.76 : 116,816.20 = 36,314.76 : x
  2. Step 2: Convert to fraction form
    77,867.76/116,816.20 = 36,314.76/x
  3. Step 3: Cross multiply
    77,867.76x = 116,816.20 × 36,314.76
  4. Step 4: Simplify right side
    77,867.76x = 4,242,152,267.11
  5. Step 5: Solve for x
    x = 4,242,152,267.11/77,867.76
  6. Step 6: Final answer
    x = 54,478.93

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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.