Home / 85,977.22-128,943.96-33,358

Finding the Fourth Proportional to 85,977.22, 128,943.96 and 33,358

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Solution

The fourth proportional to 85,977.22, 128,943.96 and 33,358 is: 50,028.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,977.22 : 128,943.96 = 33,358 : x
  2. Step 2: Convert to fraction form
    85,977.22/128,943.96 = 33,358/x
  3. Step 3: Cross multiply
    85,977.22x = 128,943.96 × 33,358
  4. Step 4: Simplify right side
    85,977.22x = 4,301,312,617.68
  5. Step 5: Solve for x
    x = 4,301,312,617.68/85,977.22
  6. Step 6: Final answer
    x = 50,028.51

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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.