Home / 66,402.12-91,632.25-36,186.79

Finding the Fourth Proportional to 66,402.12, 91,632.25 and 36,186.79

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Solution

The fourth proportional to 66,402.12, 91,632.25 and 36,186.79 is: 49,936.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,402.12 : 91,632.25 = 36,186.79 : x
  2. Step 2: Convert to fraction form
    66,402.12/91,632.25 = 36,186.79/x
  3. Step 3: Cross multiply
    66,402.12x = 91,632.25 × 36,186.79
  4. Step 4: Simplify right side
    66,402.12x = 3,315,877,319.56
  5. Step 5: Solve for x
    x = 3,315,877,319.56/66,402.12
  6. Step 6: Final answer
    x = 49,936.32

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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.