Home / 56,166.43-77,417.39-39,819.21

Finding the Fourth Proportional to 56,166.43, 77,417.39 and 39,819.21

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Solution

The fourth proportional to 56,166.43, 77,417.39 and 39,819.21 is: 54,885.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,166.43 : 77,417.39 = 39,819.21 : x
  2. Step 2: Convert to fraction form
    56,166.43/77,417.39 = 39,819.21/x
  3. Step 3: Cross multiply
    56,166.43x = 77,417.39 × 39,819.21
  4. Step 4: Simplify right side
    56,166.43x = 3,082,699,310.06
  5. Step 5: Solve for x
    x = 3,082,699,310.06/56,166.43
  6. Step 6: Final answer
    x = 54,885.09

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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.