Home / 56,161.85-77,503.73-30,668.39

Finding the Fourth Proportional to 56,161.85, 77,503.73 and 30,668.39

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Solution

The fourth proportional to 56,161.85, 77,503.73 and 30,668.39 is: 42,322.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,161.85 : 77,503.73 = 30,668.39 : x
  2. Step 2: Convert to fraction form
    56,161.85/77,503.73 = 30,668.39/x
  3. Step 3: Cross multiply
    56,161.85x = 77,503.73 × 30,668.39
  4. Step 4: Simplify right side
    56,161.85x = 2,376,914,367.87
  5. Step 5: Solve for x
    x = 2,376,914,367.87/56,161.85
  6. Step 6: Final answer
    x = 42,322.58

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1.5x scale

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.