Home / 68,916.64-95,080.08-39,091.36

Finding the Fourth Proportional to 68,916.64, 95,080.08 and 39,091.36

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Solution

The fourth proportional to 68,916.64, 95,080.08 and 39,091.36 is: 53,931.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,916.64 : 95,080.08 = 39,091.36 : x
  2. Step 2: Convert to fraction form
    68,916.64/95,080.08 = 39,091.36/x
  3. Step 3: Cross multiply
    68,916.64x = 95,080.08 × 39,091.36
  4. Step 4: Simplify right side
    68,916.64x = 3,716,809,636.11
  5. Step 5: Solve for x
    x = 3,716,809,636.11/68,916.64
  6. Step 6: Final answer
    x = 53,931.96

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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.