Home / 85,847.36-118,429.38-55,642.46

Finding the Fourth Proportional to 85,847.36, 118,429.38 and 55,642.46

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Solution

The fourth proportional to 85,847.36, 118,429.38 and 55,642.46 is: 76,760.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,847.36 : 118,429.38 = 55,642.46 : x
  2. Step 2: Convert to fraction form
    85,847.36/118,429.38 = 55,642.46/x
  3. Step 3: Cross multiply
    85,847.36x = 118,429.38 × 55,642.46
  4. Step 4: Simplify right side
    85,847.36x = 6,589,702,178.58
  5. Step 5: Solve for x
    x = 6,589,702,178.58/85,847.36
  6. Step 6: Final answer
    x = 76,760.69

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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.