Home / 66,318.12-99,478.22-36,922.80

Finding the Fourth Proportional to 66,318.12, 99,478.22 and 36,922.80

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Solution

The fourth proportional to 66,318.12, 99,478.22 and 36,922.80 is: 55,384.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,318.12 : 99,478.22 = 36,922.80 : x
  2. Step 2: Convert to fraction form
    66,318.12/99,478.22 = 36,922.80/x
  3. Step 3: Cross multiply
    66,318.12x = 99,478.22 × 36,922.80
  4. Step 4: Simplify right side
    66,318.12x = 3,673,014,421.42
  5. Step 5: Solve for x
    x = 3,673,014,421.42/66,318.12
  6. Step 6: Final answer
    x = 55,384.78

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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.