Home / 55,529.18-76,632.18-30,378.68

Finding the Fourth Proportional to 55,529.18, 76,632.18 and 30,378.68

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Solution

The fourth proportional to 55,529.18, 76,632.18 and 30,378.68 is: 41,923.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,529.18 : 76,632.18 = 30,378.68 : x
  2. Step 2: Convert to fraction form
    55,529.18/76,632.18 = 30,378.68/x
  3. Step 3: Cross multiply
    55,529.18x = 76,632.18 × 30,378.68
  4. Step 4: Simplify right side
    55,529.18x = 2,327,984,473.92
  5. Step 5: Solve for x
    x = 2,327,984,473.92/55,529.18
  6. Step 6: Final answer
    x = 41,923.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.