Home / 54,911.39-82,335.86-21,613.40

Finding the Fourth Proportional to 54,911.39, 82,335.86 and 21,613.40

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Solution

The fourth proportional to 54,911.39, 82,335.86 and 21,613.40 is: 32,407.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,911.39 : 82,335.86 = 21,613.40 : x
  2. Step 2: Convert to fraction form
    54,911.39/82,335.86 = 21,613.40/x
  3. Step 3: Cross multiply
    54,911.39x = 82,335.86 × 21,613.40
  4. Step 4: Simplify right side
    54,911.39x = 1,779,558,136.40
  5. Step 5: Solve for x
    x = 1,779,558,136.40/54,911.39
  6. Step 6: Final answer
    x = 32,407.82

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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.