Home / 45,711.20-68,534.40-17,620.40

Finding the Fourth Proportional to 45,711.20, 68,534.40 and 17,620.40

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Solution

The fourth proportional to 45,711.20, 68,534.40 and 17,620.40 is: 26,418.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,711.20 : 68,534.40 = 17,620.40 : x
  2. Step 2: Convert to fraction form
    45,711.20/68,534.40 = 17,620.40/x
  3. Step 3: Cross multiply
    45,711.20x = 68,534.40 × 17,620.40
  4. Step 4: Simplify right side
    45,711.20x = 1,207,603,541.76
  5. Step 5: Solve for x
    x = 1,207,603,541.76/45,711.20
  6. Step 6: Final answer
    x = 26,418.11

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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.