Home / 85,263.40-117,632.64-49,433.68

Finding the Fourth Proportional to 85,263.40, 117,632.64 and 49,433.68

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Solution

The fourth proportional to 85,263.40, 117,632.64 and 49,433.68 is: 68,200.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,263.40 : 117,632.64 = 49,433.68 : x
  2. Step 2: Convert to fraction form
    85,263.40/117,632.64 = 49,433.68/x
  3. Step 3: Cross multiply
    85,263.40x = 117,632.64 × 49,433.68
  4. Step 4: Simplify right side
    85,263.40x = 5,815,014,283.32
  5. Step 5: Solve for x
    x = 5,815,014,283.32/85,263.40
  6. Step 6: Final answer
    x = 68,200.59

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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.