Home / 85,157.34-117,516.92-49,368.02

Finding the Fourth Proportional to 85,157.34, 117,516.92 and 49,368.02

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Solution

The fourth proportional to 85,157.34, 117,516.92 and 49,368.02 is: 68,127.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,157.34 : 117,516.92 = 49,368.02 : x
  2. Step 2: Convert to fraction form
    85,157.34/117,516.92 = 49,368.02/x
  3. Step 3: Cross multiply
    85,157.34x = 117,516.92 × 49,368.02
  4. Step 4: Simplify right side
    85,157.34x = 5,801,577,656.90
  5. Step 5: Solve for x
    x = 5,801,577,656.90/85,157.34
  6. Step 6: Final answer
    x = 68,127.75

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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.