Home / 54,582.40-81,877.38-21,291.40

Finding the Fourth Proportional to 54,582.40, 81,877.38 and 21,291.40

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Solution

The fourth proportional to 54,582.40, 81,877.38 and 21,291.40 is: 31,938.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,582.40 : 81,877.38 = 21,291.40 : x
  2. Step 2: Convert to fraction form
    54,582.40/81,877.38 = 21,291.40/x
  3. Step 3: Cross multiply
    54,582.40x = 81,877.38 × 21,291.40
  4. Step 4: Simplify right side
    54,582.40x = 1,743,284,048.53
  5. Step 5: Solve for x
    x = 1,743,284,048.53/54,582.40
  6. Step 6: Final answer
    x = 31,938.57

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1.5x scale

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.