Home / 55,399.92-76,515.53-40,359.84

Finding the Fourth Proportional to 55,399.92, 76,515.53 and 40,359.84

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Solution

The fourth proportional to 55,399.92, 76,515.53 and 40,359.84 is: 55,742.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,399.92 : 76,515.53 = 40,359.84 : x
  2. Step 2: Convert to fraction form
    55,399.92/76,515.53 = 40,359.84/x
  3. Step 3: Cross multiply
    55,399.92x = 76,515.53 × 40,359.84
  4. Step 4: Simplify right side
    55,399.92x = 3,088,154,548.32
  5. Step 5: Solve for x
    x = 3,088,154,548.32/55,399.92
  6. Step 6: Final answer
    x = 55,742.94

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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.