Home / 82,178.16-113,419.79-47,717.55

Finding the Fourth Proportional to 82,178.16, 113,419.79 and 47,717.55

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Solution

The fourth proportional to 82,178.16, 113,419.79 and 47,717.55 is: 65,858.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,178.16 : 113,419.79 = 47,717.55 : x
  2. Step 2: Convert to fraction form
    82,178.16/113,419.79 = 47,717.55/x
  3. Step 3: Cross multiply
    82,178.16x = 113,419.79 × 47,717.55
  4. Step 4: Simplify right side
    82,178.16x = 5,412,114,261.73
  5. Step 5: Solve for x
    x = 5,412,114,261.73/82,178.16
  6. Step 6: Final answer
    x = 65,858.30

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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.