Home / 66,490.08-99,718.38-33,186.12

Finding the Fourth Proportional to 66,490.08, 99,718.38 and 33,186.12

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Solution

The fourth proportional to 66,490.08, 99,718.38 and 33,186.12 is: 49,770.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,490.08 : 99,718.38 = 33,186.12 : x
  2. Step 2: Convert to fraction form
    66,490.08/99,718.38 = 33,186.12/x
  3. Step 3: Cross multiply
    66,490.08x = 99,718.38 × 33,186.12
  4. Step 4: Simplify right side
    66,490.08x = 3,309,266,124.89
  5. Step 5: Solve for x
    x = 3,309,266,124.89/66,490.08
  6. Step 6: Final answer
    x = 49,770.82

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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.