Home / 91,119.84-136,682.72-31,996.64

Finding the Fourth Proportional to 91,119.84, 136,682.72 and 31,996.64

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Solution

The fourth proportional to 91,119.84, 136,682.72 and 31,996.64 is: 47,996.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,119.84 : 136,682.72 = 31,996.64 : x
  2. Step 2: Convert to fraction form
    91,119.84/136,682.72 = 31,996.64/x
  3. Step 3: Cross multiply
    91,119.84x = 136,682.72 × 31,996.64
  4. Step 4: Simplify right side
    91,119.84x = 4,373,387,786.06
  5. Step 5: Solve for x
    x = 4,373,387,786.06/91,119.84
  6. Step 6: Final answer
    x = 47,996.00

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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.