Home / 68,271.20-102,560.40-47,535.20

Finding the Fourth Proportional to 68,271.20, 102,560.40 and 47,535.20

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Solution

The fourth proportional to 68,271.20, 102,560.40 and 47,535.20 is: 71,409.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,271.20 : 102,560.40 = 47,535.20 : x
  2. Step 2: Convert to fraction form
    68,271.20/102,560.40 = 47,535.20/x
  3. Step 3: Cross multiply
    68,271.20x = 102,560.40 × 47,535.20
  4. Step 4: Simplify right side
    68,271.20x = 4,875,229,126.08
  5. Step 5: Solve for x
    x = 4,875,229,126.08/68,271.20
  6. Step 6: Final answer
    x = 71,409.75

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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.