Home / 85,581.90-128,394.72-32,977.26

Finding the Fourth Proportional to 85,581.90, 128,394.72 and 32,977.26

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Solution

The fourth proportional to 85,581.90, 128,394.72 and 32,977.26 is: 49,474.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,581.90 : 128,394.72 = 32,977.26 : x
  2. Step 2: Convert to fraction form
    85,581.90/128,394.72 = 32,977.26/x
  3. Step 3: Cross multiply
    85,581.90x = 128,394.72 × 32,977.26
  4. Step 4: Simplify right side
    85,581.90x = 4,234,106,064.07
  5. Step 5: Solve for x
    x = 4,234,106,064.07/85,581.90
  6. Step 6: Final answer
    x = 49,474.32

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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.