Home / 45,206.20-67,820.10-21,813.40

Finding the Fourth Proportional to 45,206.20, 67,820.10 and 21,813.40

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Solution

The fourth proportional to 45,206.20, 67,820.10 and 21,813.40 is: 32,725.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,206.20 : 67,820.10 = 21,813.40 : x
  2. Step 2: Convert to fraction form
    45,206.20/67,820.10 = 21,813.40/x
  3. Step 3: Cross multiply
    45,206.20x = 67,820.10 × 21,813.40
  4. Step 4: Simplify right side
    45,206.20x = 1,479,386,969.34
  5. Step 5: Solve for x
    x = 1,479,386,969.34/45,206.20
  6. Step 6: Final answer
    x = 32,725.31

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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.