Home / 118,542.79-177,777.19-39,638.60

Finding the Fourth Proportional to 118,542.79, 177,777.19 and 39,638.60

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Solution

The fourth proportional to 118,542.79, 177,777.19 and 39,638.60 is: 59,445.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,542.79 : 177,777.19 = 39,638.60 : x
  2. Step 2: Convert to fraction form
    118,542.79/177,777.19 = 39,638.60/x
  3. Step 3: Cross multiply
    118,542.79x = 177,777.19 × 39,638.60
  4. Step 4: Simplify right side
    118,542.79x = 7,046,837,836.46
  5. Step 5: Solve for x
    x = 7,046,837,836.46/118,542.79
  6. Step 6: Final answer
    x = 59,445.52

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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.