Home / 85,791.24-118,447.20-69,913.68

Finding the Fourth Proportional to 85,791.24, 118,447.20 and 69,913.68

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Solution

The fourth proportional to 85,791.24, 118,447.20 and 69,913.68 is: 96,525.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,791.24 : 118,447.20 = 69,913.68 : x
  2. Step 2: Convert to fraction form
    85,791.24/118,447.20 = 69,913.68/x
  3. Step 3: Cross multiply
    85,791.24x = 118,447.20 × 69,913.68
  4. Step 4: Simplify right side
    85,791.24x = 8,281,079,637.70
  5. Step 5: Solve for x
    x = 8,281,079,637.70/85,791.24
  6. Step 6: Final answer
    x = 96,525.93

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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.