Home / 54,609.96-81,878.76-21,333.18

Finding the Fourth Proportional to 54,609.96, 81,878.76 and 21,333.18

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Solution

The fourth proportional to 54,609.96, 81,878.76 and 21,333.18 is: 31,985.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,609.96 : 81,878.76 = 21,333.18 : x
  2. Step 2: Convert to fraction form
    54,609.96/81,878.76 = 21,333.18/x
  3. Step 3: Cross multiply
    54,609.96x = 81,878.76 × 21,333.18
  4. Step 4: Simplify right side
    54,609.96x = 1,746,734,325.26
  5. Step 5: Solve for x
    x = 1,746,734,325.26/54,609.96
  6. Step 6: Final answer
    x = 31,985.64

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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.