Home / 82,016.40-113,159.03-53,378.20

Finding the Fourth Proportional to 82,016.40, 113,159.03 and 53,378.20

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Solution

The fourth proportional to 82,016.40, 113,159.03 and 53,378.20 is: 73,646.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,016.40 : 113,159.03 = 53,378.20 : x
  2. Step 2: Convert to fraction form
    82,016.40/113,159.03 = 53,378.20/x
  3. Step 3: Cross multiply
    82,016.40x = 113,159.03 × 53,378.20
  4. Step 4: Simplify right side
    82,016.40x = 6,040,224,785.36
  5. Step 5: Solve for x
    x = 6,040,224,785.36/82,016.40
  6. Step 6: Final answer
    x = 73,646.55

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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.