Home / 85,539.27-128,300.66-26,359.05

Finding the Fourth Proportional to 85,539.27, 128,300.66 and 26,359.05

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Solution

The fourth proportional to 85,539.27, 128,300.66 and 26,359.05 is: 39,536.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,539.27 : 128,300.66 = 26,359.05 : x
  2. Step 2: Convert to fraction form
    85,539.27/128,300.66 = 26,359.05/x
  3. Step 3: Cross multiply
    85,539.27x = 128,300.66 × 26,359.05
  4. Step 4: Simplify right side
    85,539.27x = 3,381,883,511.97
  5. Step 5: Solve for x
    x = 3,381,883,511.97/85,539.27
  6. Step 6: Final answer
    x = 39,536.03

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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.