Home / 85,133.28-117,379.86-53,246.82

Finding the Fourth Proportional to 85,133.28, 117,379.86 and 53,246.82

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Solution

The fourth proportional to 85,133.28, 117,379.86 and 53,246.82 is: 73,415.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,133.28 : 117,379.86 = 53,246.82 : x
  2. Step 2: Convert to fraction form
    85,133.28/117,379.86 = 53,246.82/x
  3. Step 3: Cross multiply
    85,133.28x = 117,379.86 × 53,246.82
  4. Step 4: Simplify right side
    85,133.28x = 6,250,104,277.05
  5. Step 5: Solve for x
    x = 6,250,104,277.05/85,133.28
  6. Step 6: Final answer
    x = 73,415.52

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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.