Home / 66,186.16-91,336.35-40,337.23

Finding the Fourth Proportional to 66,186.16, 91,336.35 and 40,337.23

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Solution

The fourth proportional to 66,186.16, 91,336.35 and 40,337.23 is: 55,665.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,186.16 : 91,336.35 = 40,337.23 : x
  2. Step 2: Convert to fraction form
    66,186.16/91,336.35 = 40,337.23/x
  3. Step 3: Cross multiply
    66,186.16x = 91,336.35 × 40,337.23
  4. Step 4: Simplify right side
    66,186.16x = 3,684,255,357.31
  5. Step 5: Solve for x
    x = 3,684,255,357.31/66,186.16
  6. Step 6: Final answer
    x = 55,665.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.