Home / 86,451.17-129,645.56-36,535.12

Finding the Fourth Proportional to 86,451.17, 129,645.56 and 36,535.12

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Solution

The fourth proportional to 86,451.17, 129,645.56 and 36,535.12 is: 54,789.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,451.17 : 129,645.56 = 36,535.12 : x
  2. Step 2: Convert to fraction form
    86,451.17/129,645.56 = 36,535.12/x
  3. Step 3: Cross multiply
    86,451.17x = 129,645.56 × 36,535.12
  4. Step 4: Simplify right side
    86,451.17x = 4,736,615,859.29
  5. Step 5: Solve for x
    x = 4,736,615,859.29/86,451.17
  6. Step 6: Final answer
    x = 54,789.50

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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.