Home / 54,909.83-82,308.18-21,616.40

Finding the Fourth Proportional to 54,909.83, 82,308.18 and 21,616.40

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Solution

The fourth proportional to 54,909.83, 82,308.18 and 21,616.40 is: 32,402.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,909.83 : 82,308.18 = 21,616.40 : x
  2. Step 2: Convert to fraction form
    54,909.83/82,308.18 = 21,616.40/x
  3. Step 3: Cross multiply
    54,909.83x = 82,308.18 × 21,616.40
  4. Step 4: Simplify right side
    54,909.83x = 1,779,206,542.15
  5. Step 5: Solve for x
    x = 1,779,206,542.15/54,909.83
  6. Step 6: Final answer
    x = 32,402.33

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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.