Home / 85,539.95-128,301.68-26,359.73

Finding the Fourth Proportional to 85,539.95, 128,301.68 and 26,359.73

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Solution

The fourth proportional to 85,539.95, 128,301.68 and 26,359.73 is: 39,537.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,539.95 : 128,301.68 = 26,359.73 : x
  2. Step 2: Convert to fraction form
    85,539.95/128,301.68 = 26,359.73/x
  3. Step 3: Cross multiply
    85,539.95x = 128,301.68 × 26,359.73
  4. Step 4: Simplify right side
    85,539.95x = 3,381,997,832.30
  5. Step 5: Solve for x
    x = 3,381,997,832.30/85,539.95
  6. Step 6: Final answer
    x = 39,537.06

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1.5x scale

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.