Home / 51,120.28-70,541.94-28,457.56

Finding the Fourth Proportional to 51,120.28, 70,541.94 and 28,457.56

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Solution

The fourth proportional to 51,120.28, 70,541.94 and 28,457.56 is: 39,269.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,120.28 : 70,541.94 = 28,457.56 : x
  2. Step 2: Convert to fraction form
    51,120.28/70,541.94 = 28,457.56/x
  3. Step 3: Cross multiply
    51,120.28x = 70,541.94 × 28,457.56
  4. Step 4: Simplify right side
    51,120.28x = 2,007,451,490.07
  5. Step 5: Solve for x
    x = 2,007,451,490.07/51,120.28
  6. Step 6: Final answer
    x = 39,269.18

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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.