Home / 82,180.51-113,406.48-47,729.12

Finding the Fourth Proportional to 82,180.51, 113,406.48 and 47,729.12

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Solution

The fourth proportional to 82,180.51, 113,406.48 and 47,729.12 is: 65,864.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,180.51 : 113,406.48 = 47,729.12 : x
  2. Step 2: Convert to fraction form
    82,180.51/113,406.48 = 47,729.12/x
  3. Step 3: Cross multiply
    82,180.51x = 113,406.48 × 47,729.12
  4. Step 4: Simplify right side
    82,180.51x = 5,412,790,925.67
  5. Step 5: Solve for x
    x = 5,412,790,925.67/82,180.51
  6. Step 6: Final answer
    x = 65,864.66

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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.