Home / 86,415.45-129,581.86-44,315.70

Finding the Fourth Proportional to 86,415.45, 129,581.86 and 44,315.70

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Solution

The fourth proportional to 86,415.45, 129,581.86 and 44,315.70 is: 66,452.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,415.45 : 129,581.86 = 44,315.70 : x
  2. Step 2: Convert to fraction form
    86,415.45/129,581.86 = 44,315.70/x
  3. Step 3: Cross multiply
    86,415.45x = 129,581.86 × 44,315.70
  4. Step 4: Simplify right side
    86,415.45x = 5,742,510,833.20
  5. Step 5: Solve for x
    x = 5,742,510,833.20/86,415.45
  6. Step 6: Final answer
    x = 66,452.36

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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.