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Finding the Fourth Proportional to 57,323.33, 79,107 and 31,484

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Solution

The fourth proportional to 57,323.33, 79,107 and 31,484 is: 43,448.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,323.33 : 79,107 = 31,484 : x
  2. Step 2: Convert to fraction form
    57,323.33/79,107 = 31,484/x
  3. Step 3: Cross multiply
    57,323.33x = 79,107 × 31,484
  4. Step 4: Simplify right side
    57,323.33x = 2,490,604,788
  5. Step 5: Solve for x
    x = 2,490,604,788/57,323.33
  6. Step 6: Final answer
    x = 43,448.36

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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.