Home / 75,673.25-104,432.33-42,139.25

Finding the Fourth Proportional to 75,673.25, 104,432.33 and 42,139.25

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Solution

The fourth proportional to 75,673.25, 104,432.33 and 42,139.25 is: 58,153.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,673.25 : 104,432.33 = 42,139.25 : x
  2. Step 2: Convert to fraction form
    75,673.25/104,432.33 = 42,139.25/x
  3. Step 3: Cross multiply
    75,673.25x = 104,432.33 × 42,139.25
  4. Step 4: Simplify right side
    75,673.25x = 4,400,699,851.26
  5. Step 5: Solve for x
    x = 4,400,699,851.26/75,673.25
  6. Step 6: Final answer
    x = 58,153.97

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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.