Home / 86,073.17-129,109.77-26,909.37

Finding the Fourth Proportional to 86,073.17, 129,109.77 and 26,909.37

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Solution

The fourth proportional to 86,073.17, 129,109.77 and 26,909.37 is: 40,364.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,073.17 : 129,109.77 = 26,909.37 : x
  2. Step 2: Convert to fraction form
    86,073.17/129,109.77 = 26,909.37/x
  3. Step 3: Cross multiply
    86,073.17x = 129,109.77 × 26,909.37
  4. Step 4: Simplify right side
    86,073.17x = 3,474,262,571.54
  5. Step 5: Solve for x
    x = 3,474,262,571.54/86,073.17
  6. Step 6: Final answer
    x = 40,364.06

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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.