Home / 85,539.33-128,300.74-26,359.11

Finding the Fourth Proportional to 85,539.33, 128,300.74 and 26,359.11

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Solution

The fourth proportional to 85,539.33, 128,300.74 and 26,359.11 is: 39,536.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,539.33 : 128,300.74 = 26,359.11 : x
  2. Step 2: Convert to fraction form
    85,539.33/128,300.74 = 26,359.11/x
  3. Step 3: Cross multiply
    85,539.33x = 128,300.74 × 26,359.11
  4. Step 4: Simplify right side
    85,539.33x = 3,381,892,710.19
  5. Step 5: Solve for x
    x = 3,381,892,710.19/85,539.33
  6. Step 6: Final answer
    x = 39,536.12

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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.