Home / 85,176.15-117,494.31-53,289.69

Finding the Fourth Proportional to 85,176.15, 117,494.31 and 53,289.69

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Solution

The fourth proportional to 85,176.15, 117,494.31 and 53,289.69 is: 73,509.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,176.15 : 117,494.31 = 53,289.69 : x
  2. Step 2: Convert to fraction form
    85,176.15/117,494.31 = 53,289.69/x
  3. Step 3: Cross multiply
    85,176.15x = 117,494.31 × 53,289.69
  4. Step 4: Simplify right side
    85,176.15x = 6,261,235,356.66
  5. Step 5: Solve for x
    x = 6,261,235,356.66/85,176.15
  6. Step 6: Final answer
    x = 73,509.26

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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.