Home / 78,945.73-118,437.21-25,637.53

Finding the Fourth Proportional to 78,945.73, 118,437.21 and 25,637.53

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Solution

The fourth proportional to 78,945.73, 118,437.21 and 25,637.53 is: 38,462.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,945.73 : 118,437.21 = 25,637.53 : x
  2. Step 2: Convert to fraction form
    78,945.73/118,437.21 = 25,637.53/x
  3. Step 3: Cross multiply
    78,945.73x = 118,437.21 × 25,637.53
  4. Step 4: Simplify right side
    78,945.73x = 3,036,437,524.49
  5. Step 5: Solve for x
    x = 3,036,437,524.49/78,945.73
  6. Step 6: Final answer
    x = 38,462.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.