Home / 39,580.65-54,619.11-30,132.81

Finding the Fourth Proportional to 39,580.65, 54,619.11 and 30,132.81

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Solution

The fourth proportional to 39,580.65, 54,619.11 and 30,132.81 is: 41,581.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,580.65 : 54,619.11 = 30,132.81 : x
  2. Step 2: Convert to fraction form
    39,580.65/54,619.11 = 30,132.81/x
  3. Step 3: Cross multiply
    39,580.65x = 54,619.11 × 30,132.81
  4. Step 4: Simplify right side
    39,580.65x = 1,645,827,264.00
  5. Step 5: Solve for x
    x = 1,645,827,264.00/39,580.65
  6. Step 6: Final answer
    x = 41,581.61

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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.