Home / 86,624.46-129,928.32-58,723.92

Finding the Fourth Proportional to 86,624.46, 129,928.32 and 58,723.92

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Solution

The fourth proportional to 86,624.46, 129,928.32 and 58,723.92 is: 88,080.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,624.46 : 129,928.32 = 58,723.92 : x
  2. Step 2: Convert to fraction form
    86,624.46/129,928.32 = 58,723.92/x
  3. Step 3: Cross multiply
    86,624.46x = 129,928.32 × 58,723.92
  4. Step 4: Simplify right side
    86,624.46x = 7,629,900,269.41
  5. Step 5: Solve for x
    x = 7,629,900,269.41/86,624.46
  6. Step 6: Final answer
    x = 88,080.21

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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.