Home / 54,742.91-82,077.89-19,678.01

Finding the Fourth Proportional to 54,742.91, 82,077.89 and 19,678.01

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Solution

The fourth proportional to 54,742.91, 82,077.89 and 19,678.01 is: 29,503.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,742.91 : 82,077.89 = 19,678.01 : x
  2. Step 2: Convert to fraction form
    54,742.91/82,077.89 = 19,678.01/x
  3. Step 3: Cross multiply
    54,742.91x = 82,077.89 × 19,678.01
  4. Step 4: Simplify right side
    54,742.91x = 1,615,129,129.81
  5. Step 5: Solve for x
    x = 1,615,129,129.81/54,742.91
  6. Step 6: Final answer
    x = 29,503.90

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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.