Home / 84,743.85-127,109.59-39,775.46

Finding the Fourth Proportional to 84,743.85, 127,109.59 and 39,775.46

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Solution

The fourth proportional to 84,743.85, 127,109.59 and 39,775.46 is: 59,660.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,743.85 : 127,109.59 = 39,775.46 : x
  2. Step 2: Convert to fraction form
    84,743.85/127,109.59 = 39,775.46/x
  3. Step 3: Cross multiply
    84,743.85x = 127,109.59 × 39,775.46
  4. Step 4: Simplify right side
    84,743.85x = 5,055,841,677.67
  5. Step 5: Solve for x
    x = 5,055,841,677.67/84,743.85
  6. Step 6: Final answer
    x = 59,660.28

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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.