Home / 90,541.96-135,946.23-50,639.12

Finding the Fourth Proportional to 90,541.96, 135,946.23 and 50,639.12

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Solution

The fourth proportional to 90,541.96, 135,946.23 and 50,639.12 is: 76,033.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,541.96 : 135,946.23 = 50,639.12 : x
  2. Step 2: Convert to fraction form
    90,541.96/135,946.23 = 50,639.12/x
  3. Step 3: Cross multiply
    90,541.96x = 135,946.23 × 50,639.12
  4. Step 4: Simplify right side
    90,541.96x = 6,884,197,201.32
  5. Step 5: Solve for x
    x = 6,884,197,201.32/90,541.96
  6. Step 6: Final answer
    x = 76,033.22

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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.