Home / 57,013.64-78,678.94-31,863.14

Finding the Fourth Proportional to 57,013.64, 78,678.94 and 31,863.14

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Solution

The fourth proportional to 57,013.64, 78,678.94 and 31,863.14 is: 43,971.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,013.64 : 78,678.94 = 31,863.14 : x
  2. Step 2: Convert to fraction form
    57,013.64/78,678.94 = 31,863.14/x
  3. Step 3: Cross multiply
    57,013.64x = 78,678.94 × 31,863.14
  4. Step 4: Simplify right side
    57,013.64x = 2,506,958,080.27
  5. Step 5: Solve for x
    x = 2,506,958,080.27/57,013.64
  6. Step 6: Final answer
    x = 43,971.20

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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.