Home / 85,023.42-117,345.15-49,236.81

Finding the Fourth Proportional to 85,023.42, 117,345.15 and 49,236.81

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Solution

The fourth proportional to 85,023.42, 117,345.15 and 49,236.81 is: 67,954.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,023.42 : 117,345.15 = 49,236.81 : x
  2. Step 2: Convert to fraction form
    85,023.42/117,345.15 = 49,236.81/x
  3. Step 3: Cross multiply
    85,023.42x = 117,345.15 × 49,236.81
  4. Step 4: Simplify right side
    85,023.42x = 5,777,700,854.97
  5. Step 5: Solve for x
    x = 5,777,700,854.97/85,023.42
  6. Step 6: Final answer
    x = 67,954.23

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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.