Home / 77,677.50-116,265.64-40,185.94

Finding the Fourth Proportional to 77,677.50, 116,265.64 and 40,185.94

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Solution

The fourth proportional to 77,677.50, 116,265.64 and 40,185.94 is: 60,149.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,677.50 : 116,265.64 = 40,185.94 : x
  2. Step 2: Convert to fraction form
    77,677.50/116,265.64 = 40,185.94/x
  3. Step 3: Cross multiply
    77,677.50x = 116,265.64 × 40,185.94
  4. Step 4: Simplify right side
    77,677.50x = 4,672,244,033.10
  5. Step 5: Solve for x
    x = 4,672,244,033.10/77,677.50
  6. Step 6: Final answer
    x = 60,149.26

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1.5x scale

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.