Home / 77,631.49-116,364.17-40,153.82

Finding the Fourth Proportional to 77,631.49, 116,364.17 and 40,153.82

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Solution

The fourth proportional to 77,631.49, 116,364.17 and 40,153.82 is: 60,187.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,631.49 : 116,364.17 = 40,153.82 : x
  2. Step 2: Convert to fraction form
    77,631.49/116,364.17 = 40,153.82/x
  3. Step 3: Cross multiply
    77,631.49x = 116,364.17 × 40,153.82
  4. Step 4: Simplify right side
    77,631.49x = 4,672,465,735.86
  5. Step 5: Solve for x
    x = 4,672,465,735.86/77,631.49
  6. Step 6: Final answer
    x = 60,187.77

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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.