Home / 54,987.40-82,502.70-21,701.80

Finding the Fourth Proportional to 54,987.40, 82,502.70 and 21,701.80

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Solution

The fourth proportional to 54,987.40, 82,502.70 and 21,701.80 is: 32,561.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,987.40 : 82,502.70 = 21,701.80 : x
  2. Step 2: Convert to fraction form
    54,987.40/82,502.70 = 21,701.80/x
  3. Step 3: Cross multiply
    54,987.40x = 82,502.70 × 21,701.80
  4. Step 4: Simplify right side
    54,987.40x = 1,790,457,094.86
  5. Step 5: Solve for x
    x = 1,790,457,094.86/54,987.40
  6. Step 6: Final answer
    x = 32,561.22

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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.