Home / 66,198.30-99,271.05-21,812.70

Finding the Fourth Proportional to 66,198.30, 99,271.05 and 21,812.70

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Solution

The fourth proportional to 66,198.30, 99,271.05 and 21,812.70 is: 32,710.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,198.30 : 99,271.05 = 21,812.70 : x
  2. Step 2: Convert to fraction form
    66,198.30/99,271.05 = 21,812.70/x
  3. Step 3: Cross multiply
    66,198.30x = 99,271.05 × 21,812.70
  4. Step 4: Simplify right side
    66,198.30x = 2,165,369,632.34
  5. Step 5: Solve for x
    x = 2,165,369,632.34/66,198.30
  6. Step 6: Final answer
    x = 32,710.35

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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.