Home / 54,457.70-75,138.42-31,783.72

Finding the Fourth Proportional to 54,457.70, 75,138.42 and 31,783.72

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Solution

The fourth proportional to 54,457.70, 75,138.42 and 31,783.72 is: 43,853.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,457.70 : 75,138.42 = 31,783.72 : x
  2. Step 2: Convert to fraction form
    54,457.70/75,138.42 = 31,783.72/x
  3. Step 3: Cross multiply
    54,457.70x = 75,138.42 × 31,783.72
  4. Step 4: Simplify right side
    54,457.70x = 2,388,178,502.52
  5. Step 5: Solve for x
    x = 2,388,178,502.52/54,457.70
  6. Step 6: Final answer
    x = 43,853.83

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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.