Home / 54,541.43-81,812.21-47,123.45

Finding the Fourth Proportional to 54,541.43, 81,812.21 and 47,123.45

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Solution

The fourth proportional to 54,541.43, 81,812.21 and 47,123.45 is: 70,685.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,541.43 : 81,812.21 = 47,123.45 : x
  2. Step 2: Convert to fraction form
    54,541.43/81,812.21 = 47,123.45/x
  3. Step 3: Cross multiply
    54,541.43x = 81,812.21 × 47,123.45
  4. Step 4: Simplify right side
    54,541.43x = 3,855,272,942.65
  5. Step 5: Solve for x
    x = 3,855,272,942.65/54,541.43
  6. Step 6: Final answer
    x = 70,685.23

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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.