Home / 85,230.96-117,607.32-51,690.48

Finding the Fourth Proportional to 85,230.96, 117,607.32 and 51,690.48

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Solution

The fourth proportional to 85,230.96, 117,607.32 and 51,690.48 is: 71,325.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,230.96 : 117,607.32 = 51,690.48 : x
  2. Step 2: Convert to fraction form
    85,230.96/117,607.32 = 51,690.48/x
  3. Step 3: Cross multiply
    85,230.96x = 117,607.32 × 51,690.48
  4. Step 4: Simplify right side
    85,230.96x = 6,079,178,822.31
  5. Step 5: Solve for x
    x = 6,079,178,822.31/85,230.96
  6. Step 6: Final answer
    x = 71,325.95

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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.