Home / 54,370.36-81,570.12-43,318.72

Finding the Fourth Proportional to 54,370.36, 81,570.12 and 43,318.72

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Solution

The fourth proportional to 54,370.36, 81,570.12 and 43,318.72 is: 64,989.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,370.36 : 81,570.12 = 43,318.72 : x
  2. Step 2: Convert to fraction form
    54,370.36/81,570.12 = 43,318.72/x
  3. Step 3: Cross multiply
    54,370.36x = 81,570.12 × 43,318.72
  4. Step 4: Simplify right side
    54,370.36x = 3,533,513,188.65
  5. Step 5: Solve for x
    x = 3,533,513,188.65/54,370.36
  6. Step 6: Final answer
    x = 64,989.70

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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.