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Finding the Fourth Proportional to 57,701, 79,627.62 and 31,205

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Solution

The fourth proportional to 57,701, 79,627.62 and 31,205 is: 43,063.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,701 : 79,627.62 = 31,205 : x
  2. Step 2: Convert to fraction form
    57,701/79,627.62 = 31,205/x
  3. Step 3: Cross multiply
    57,701x = 79,627.62 × 31,205
  4. Step 4: Simplify right side
    57,701x = 2,484,779,882.10
  5. Step 5: Solve for x
    x = 2,484,779,882.10/57,701
  6. Step 6: Final answer
    x = 43,063.03

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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.