Home / 90,343.08-135,527.06-30,376.20

Finding the Fourth Proportional to 90,343.08, 135,527.06 and 30,376.20

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Solution

The fourth proportional to 90,343.08, 135,527.06 and 30,376.20 is: 45,568.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,343.08 : 135,527.06 = 30,376.20 : x
  2. Step 2: Convert to fraction form
    90,343.08/135,527.06 = 30,376.20/x
  3. Step 3: Cross multiply
    90,343.08x = 135,527.06 × 30,376.20
  4. Step 4: Simplify right side
    90,343.08x = 4,116,797,079.97
  5. Step 5: Solve for x
    x = 4,116,797,079.97/90,343.08
  6. Step 6: Final answer
    x = 45,568.48

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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.