Home / 86,017.40-129,026.11-26,858.14

Finding the Fourth Proportional to 86,017.40, 129,026.11 and 26,858.14

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Solution

The fourth proportional to 86,017.40, 129,026.11 and 26,858.14 is: 40,287.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,017.40 : 129,026.11 = 26,858.14 : x
  2. Step 2: Convert to fraction form
    86,017.40/129,026.11 = 26,858.14/x
  3. Step 3: Cross multiply
    86,017.40x = 129,026.11 × 26,858.14
  4. Step 4: Simplify right side
    86,017.40x = 3,465,400,680.90
  5. Step 5: Solve for x
    x = 3,465,400,680.90/86,017.40
  6. Step 6: Final answer
    x = 40,287.21

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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.