Home / 58,919.62-81,339.15-39,899.92

Finding the Fourth Proportional to 58,919.62, 81,339.15 and 39,899.92

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Solution

The fourth proportional to 58,919.62, 81,339.15 and 39,899.92 is: 55,082.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,919.62 : 81,339.15 = 39,899.92 : x
  2. Step 2: Convert to fraction form
    58,919.62/81,339.15 = 39,899.92/x
  3. Step 3: Cross multiply
    58,919.62x = 81,339.15 × 39,899.92
  4. Step 4: Simplify right side
    58,919.62x = 3,245,425,577.87
  5. Step 5: Solve for x
    x = 3,245,425,577.87/58,919.62
  6. Step 6: Final answer
    x = 55,082.26

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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.